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/******************************************************************************
* @file window_functions.h
* @brief Public header file for CMSIS DSP Library
* @version v1.15.0
* @date 15 December 2022
* Target Processor: Cortex-M and Cortex-A cores
******************************************************************************/
/*
* Copyright (c) 2010-2022 Arm Limited or its affiliates. All rights reserved.
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the License); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* [url]www.apache.org/licenses/LICENSE-2.0[/url]
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an AS IS BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef _WINDOW_FUNCTIONS_H_
#define _WINDOW_FUNCTIONS_H_
#include "arm_math_types.h"
#include "arm_math_memory.h"
#include "dsp/none.h"
#include "dsp/utils.h"
#ifdef __cplusplus
extern "C"
{
#endif
/**
* @defgroup groupWindow Window Functions
*/
/**
* @brief Welch window (double).
* @param[out] pDst points to the output generated window
* @param[in] blockSize number of samples in the window
*
* @par Parameters of the window
*
* | Parameter | Value |
* | ------------------------------------: | -----------------: |
* | Peak sidelobe level | 21.3 dB |
* | Normalized equivalent noise bandwidth | 1.2 bins |
* | Flatness | -2.2248 dB |
* | Recommended overlap | 29.3 % |
*
*/
void arm_welch_f64(
float64_t * pDst,
uint32_t blockSize);
/**
* @brief Welch window (float).
* @param[out] pDst points to the output generated window
* @param[in] blockSize number of samples in the window
*
* @par Parameters of the window
*
* | Parameter | Value |
* | ------------------------------------: | -----------------: |
* | Peak sidelobe level | 21.3 dB |
* | Normalized equivalent noise bandwidth | 1.2 bins |
* | Flatness | -2.2248 dB |
* | Recommended overlap | 29.3 % |
*
*
*/
void arm_welch_f32(
float32_t * pDst,
uint32_t blockSize);
/**
* @brief Bartlett window (double).
* @param[out] pDst points to the output generated window
* @param[in] blockSize number of samples in the window
*
* @par Parameters of the window
*
* | Parameter | Value |
* | ------------------------------------: | -----------------: |
* | Peak sidelobe level | 26.5 dB |
* | Normalized equivalent noise bandwidth | 1.3333 bins |
* | Flatness | -1.8242 dB |
* | Recommended overlap | 50.0 % |
*
*/
void arm_bartlett_f64(
float64_t * pDst,
uint32_t blockSize);
/**
* @brief Bartlett window (float).
* @param[out] pDst points to the output generated window
* @param[in] blockSize number of samples in the window
*
* @par Parameters of the window
*
* | Parameter | Value |
* | ------------------------------------: | -----------------: |
* | Peak sidelobe level | 26.5 dB |
* | Normalized equivalent noise bandwidth | 1.3333 bins |
* | Flatness | -1.8242 dB |
* | Recommended overlap | 50.0 % |
*
*
*/
void arm_bartlett_f32(
float32_t * pDst,
uint32_t blockSize);
/**
* @brief Hamming window (double).
* @param[out] pDst points to the output generated window
* @param[in] blockSize number of samples in the window
*
* @par Parameters of the window
*
* | Parameter | Value |
* | ------------------------------------: | -----------------: |
* | Peak sidelobe level | 42.7 dB |
* | Normalized equivalent noise bandwidth | 1.3628 bins |
* | Flatness | -1.7514 dB |
* | Recommended overlap | 50 % |
*
*/
void arm_hamming_f64(
float64_t * pDst,
uint32_t blockSize);
/**
* @brief Hamming window (float).
* @param[out] pDst points to the output generated window
* @param[in] blockSize number of samples in the window
*
* @par Parameters of the window
*
* | Parameter | Value |
* | ------------------------------------: | -----------------: |
* | Peak sidelobe level | 42.7 dB |
* | Normalized equivalent noise bandwidth | 1.3628 bins |
* | Flatness | -1.7514 dB |
* | Recommended overlap | 50 % |
*
*
*/
void arm_hamming_f32(
float32_t * pDst,
uint32_t blockSize);
/**
* @brief Hanning window (double).
* @param[out] pDst points to the output generated window
* @param[in] blockSize number of samples in the window
*
* @par Parameters of the window
*
* | Parameter | Value |
* | ------------------------------------: | -----------------: |
* | Peak sidelobe level | 31.5 dB |
* | Normalized equivalent noise bandwidth | 1.5 bins |
* | Flatness | -1.4236 dB |
* | Recommended overlap | 50 % |
*
*/
void arm_hanning_f64(
float64_t * pDst,
uint32_t blockSize);
/**
* @brief Hanning window (float).
* @param[out] pDst points to the output generated window
* @param[in] blockSize number of samples in the window
*
* @par Parameters of the window
*
* | Parameter | Value |
* | ------------------------------------: | -----------------: |
* | Peak sidelobe level | 31.5 dB |
* | Normalized equivalent noise bandwidth | 1.5 bins |
* | Flatness | -1.4236 dB |
* | Recommended overlap | 50 % |
*
*
*/
void arm_hanning_f32(
float32_t * pDst,
uint32_t blockSize);
/**
* @brief Nuttall3 window (double).
* @param[out] pDst points to the output generated window
* @param[in] blockSize number of samples in the window
*
* @par Parameters of the window
*
* | Parameter | Value |
* | ------------------------------------: | -----------------: |
* | Peak sidelobe level | 46.7 dB |
* | Normalized equivalent noise bandwidth | 1.9444 bins |
* | Flatness | -0.863 dB |
* | Recommended overlap | 64.7 % |
*
*/
void arm_nuttall3_f64(
float64_t * pDst,
uint32_t blockSize);
/**
* @brief Nuttall3 window (float).
* @param[out] pDst points to the output generated window
* @param[in] blockSize number of samples in the window
*
* @par Parameters of the window
*
* | Parameter | Value |
* | ------------------------------------: | -----------------: |
* | Peak sidelobe level | 46.7 dB |
* | Normalized equivalent noise bandwidth | 1.9444 bins |
* | Flatness | -0.863 dB |
* | Recommended overlap | 64.7 % |
*
*
*/
void arm_nuttall3_f32(
float32_t * pDst,
uint32_t blockSize);
/**
* @brief Nuttall4 window (double).
* @param[out] pDst points to the output generated window
* @param[in] blockSize number of samples in the window
*
* @par Parameters of the window
*
* | Parameter | Value |
* | ------------------------------------: | -----------------: |
* | Peak sidelobe level | 60.9 dB |
* | Normalized equivalent noise bandwidth | 2.31 bins |
* | Flatness | -0.6184 dB |
* | Recommended overlap | 70.5 % |
*
*/
void arm_nuttall4_f64(
float64_t * pDst,
uint32_t blockSize);
/**
* @brief Nuttall4 window (float).
* @param[out] pDst points to the output generated window
* @param[in] blockSize number of samples in the window
*
* @par Parameters of the window
*
* | Parameter | Value |
* | ------------------------------------: | -----------------: |
* | Peak sidelobe level | 60.9 dB |
* | Normalized equivalent noise bandwidth | 2.31 bins |
* | Flatness | -0.6184 dB |
* | Recommended overlap | 70.5 % |
*
*
*/
void arm_nuttall4_f32(
float32_t * pDst,
uint32_t blockSize);
/**
* @brief Nuttall3a window (double).
* @param[out] pDst points to the output generated window
* @param[in] blockSize number of samples in the window
*
* @par Parameters of the window
*
* | Parameter | Value |
* | ------------------------------------: | -----------------: |
* | Peak sidelobe level | 64.2 dB |
* | Normalized equivalent noise bandwidth | 1.7721 bins |
* | Flatness | -1.0453 dB |
* | Recommended overlap | 61.2 % |
*
*/
void arm_nuttall3a_f64(
float64_t * pDst,
uint32_t blockSize);
/**
* @brief Nuttall3a window (float).
* @param[out] pDst points to the output generated window
* @param[in] blockSize number of samples in the window
*
* @par Parameters of the window
*
* | Parameter | Value |
* | ------------------------------------: | -----------------: |
* | Peak sidelobe level | 64.2 dB |
* | Normalized equivalent noise bandwidth | 1.7721 bins |
* | Flatness | -1.0453 dB |
* | Recommended overlap | 61.2 % |
*
*
*/
void arm_nuttall3a_f32(
float32_t * pDst,
uint32_t blockSize);
/**
* @brief Nuttall3b window (double).
* @param[out] pDst points to the output generated window
* @param[in] blockSize number of samples in the window
*
* @par Parameters of the window
*
* | Parameter | Value |
* | ------------------------------------: | -----------------: |
* | Peak sidelobe level | 71.5 dB |
* | Normalized equivalent noise bandwidth | 1.7037 bins |
* | Flatness | -1.1352 dB |
* | Recommended overlap | 59.8 % |
*
*/
void arm_nuttall3b_f64(
float64_t * pDst,
uint32_t blockSize);
/**
* @brief Nuttall3b window (float).
* @param[out] pDst points to the output generated window
* @param[in] blockSize number of samples in the window
*
* @par Parameters of the window
*
* | Parameter | Value |
* | ------------------------------------: | -----------------: |
* | Peak sidelobe level | 71.5 dB |
* | Normalized equivalent noise bandwidth | 1.7037 bins |
* | Flatness | -1.1352 dB |
* | Recommended overlap | 59.8 % |
*
*
*/
void arm_nuttall3b_f32(
float32_t * pDst,
uint32_t blockSize);
/**
* @brief Nuttall4a window (double).
* @param[out] pDst points to the output generated window
* @param[in] blockSize number of samples in the window
*
* @par Parameters of the window
*
* | Parameter | Value |
* | ------------------------------------: | -----------------: |
* | Peak sidelobe level | 82.6 dB |
* | Normalized equivalent noise bandwidth | 2.1253 bins |
* | Flatness | -0.7321 dB |
* | Recommended overlap | 68.0 % |
*
*/
void arm_nuttall4a_f64(
float64_t * pDst,
uint32_t blockSize);
/**
* @brief Nuttall4a window (float).
* @param[out] pDst points to the output generated window
* @param[in] blockSize number of samples in the window
*
* @par Parameters of the window
*
* | Parameter | Value |
* | ------------------------------------: | -----------------: |
* | Peak sidelobe level | 82.6 dB |
* | Normalized equivalent noise bandwidth | 2.1253 bins |
* | Flatness | -0.7321 dB |
* | Recommended overlap | 68.0 % |
*
*
*/
void arm_nuttall4a_f32(
float32_t * pDst,
uint32_t blockSize);
/**
* @brief 92 db blackman harris window (double).
* @param[out] pDst points to the output generated window
* @param[in] blockSize number of samples in the window
*
* @par Parameters of the window
*
* | Parameter | Value |
* | ------------------------------------: | -----------------: |
* | Peak sidelobe level | 92.0 dB |
* | Normalized equivalent noise bandwidth | 2.0044 bins |
* | Flatness | -0.8256 dB |
* | Recommended overlap | 66.1 % |
*
*/
void arm_blackman_harris_92db_f64(
float64_t * pDst,
uint32_t blockSize);
/**
* @brief 92 db blackman harris window (float).
* @param[out] pDst points to the output generated window
* @param[in] blockSize number of samples in the window
*
* @par Parameters of the window
*
* | Parameter | Value |
* | ------------------------------------: | -----------------: |
* | Peak sidelobe level | 92.0 dB |
* | Normalized equivalent noise bandwidth | 2.0044 bins |
* | Flatness | -0.8256 dB |
* | Recommended overlap | 66.1 % |
*
*
*/
void arm_blackman_harris_92db_f32(
float32_t * pDst,
uint32_t blockSize);
/**
* @brief Nuttall4b window (double).
* @param[out] pDst points to the output generated window
* @param[in] blockSize number of samples in the window
*
* @par Parameters of the window
*
* | Parameter | Value |
* | ------------------------------------: | -----------------: |
* | Peak sidelobe level | 93.3 dB |
* | Normalized equivalent noise bandwidth | 2.0212 bins |
* | Flatness | -0.8118 dB |
* | Recommended overlap | 66.3 % |
*
*/
void arm_nuttall4b_f64(
float64_t * pDst,
uint32_t blockSize);
/**
* @brief Nuttall4b window (float).
* @param[out] pDst points to the output generated window
* @param[in] blockSize number of samples in the window
*
* @par Parameters of the window
*
* | Parameter | Value |
* | ------------------------------------: | -----------------: |
* | Peak sidelobe level | 93.3 dB |
* | Normalized equivalent noise bandwidth | 2.0212 bins |
* | Flatness | -0.8118 dB |
* | Recommended overlap | 66.3 % |
*
*
*/
void arm_nuttall4b_f32(
float32_t * pDst,
uint32_t blockSize);
/**
* @brief Nuttall4c window (double).
* @param[out] pDst points to the output generated window
* @param[in] blockSize number of samples in the window
*
* @par Parameters of the window
*
* | Parameter | Value |
* | ------------------------------------: | -----------------: |
* | Peak sidelobe level | 98.1 dB |
* | Normalized equivalent noise bandwidth | 1.9761 bins |
* | Flatness | -0.8506 dB |
* | Recommended overlap | 65.6 % |
*
*/
void arm_nuttall4c_f64(
float64_t * pDst,
uint32_t blockSize);
/**
* @brief Nuttall4c window (float).
* @param[out] pDst points to the output generated window
* @param[in] blockSize number of samples in the window
*
* @par Parameters of the window
*
* | Parameter | Value |
* | ------------------------------------: | -----------------: |
* | Peak sidelobe level | 98.1 dB |
* | Normalized equivalent noise bandwidth | 1.9761 bins |
* | Flatness | -0.8506 dB |
* | Recommended overlap | 65.6 % |
*
*
*/
void arm_nuttall4c_f32(
float32_t * pDst,
uint32_t blockSize);
/**
* @brief Hft90d window (double).
* @param[out] pDst points to the output generated window
* @param[in] blockSize number of samples in the window
*
* @par Parameters of the window
*
* | Parameter | Value |
* | ------------------------------------: | -----------------: |
* | Peak sidelobe level | 90.2 dB |
* | Normalized equivalent noise bandwidth | 3.8832 bins |
* | Flatness | -0.0039 dB |
* | Recommended overlap | 76.0 % |
*
*/
void arm_hft90d_f64(
float64_t * pDst,
uint32_t blockSize);
/**
* @brief Hft90d window (float).
* @param[out] pDst points to the output generated window
* @param[in] blockSize number of samples in the window
*
* @par Parameters of the window
*
* | Parameter | Value |
* | ------------------------------------: | -----------------: |
* | Peak sidelobe level | 90.2 dB |
* | Normalized equivalent noise bandwidth | 3.8832 bins |
* | Flatness | -0.0039 dB |
* | Recommended overlap | 76.0 % |
*
*
*/
void arm_hft90d_f32(
float32_t * pDst,
uint32_t blockSize);
/**
* @brief Hft95 window (double).
* @param[out] pDst points to the output generated window
* @param[in] blockSize number of samples in the window
*
* @par Parameters of the window
*
* | Parameter | Value |
* | ------------------------------------: | -----------------: |
* | Peak sidelobe level | 95.0 dB |
* | Normalized equivalent noise bandwidth | 3.8112 bins |
* | Flatness | 0.0044 dB |
* | Recommended overlap | 75.6 % |
*
*/
void arm_hft95_f64(
float64_t * pDst,
uint32_t blockSize);
/**
* @brief Hft95 window (float).
* @param[out] pDst points to the output generated window
* @param[in] blockSize number of samples in the window
*
* @par Parameters of the window
*
* | Parameter | Value |
* | ------------------------------------: | -----------------: |
* | Peak sidelobe level | 95.0 dB |
* | Normalized equivalent noise bandwidth | 3.8112 bins |
* | Flatness | 0.0044 dB |
* | Recommended overlap | 75.6 % |
*
*
*/
void arm_hft95_f32(
float32_t * pDst,
uint32_t blockSize);
/**
* @brief Hft116d window (double).
* @param[out] pDst points to the output generated window
* @param[in] blockSize number of samples in the window
*
* @par Parameters of the window
*
* | Parameter | Value |
* | ------------------------------------: | -----------------: |
* | Peak sidelobe level | 116.8 dB |
* | Normalized equivalent noise bandwidth | 4.2186 bins |
* | Flatness | -0.0028 dB |
* | Recommended overlap | 78.2 % |
*
*/
void arm_hft116d_f64(
float64_t * pDst,
uint32_t blockSize);
/**
* @brief Hft116d window (float).
* @param[out] pDst points to the output generated window
* @param[in] blockSize number of samples in the window
*
* @par Parameters of the window
*
* | Parameter | Value |
* | ------------------------------------: | -----------------: |
* | Peak sidelobe level | 116.8 dB |
* | Normalized equivalent noise bandwidth | 4.2186 bins |
* | Flatness | -0.0028 dB |
* | Recommended overlap | 78.2 % |
*
*
*/
void arm_hft116d_f32(
float32_t * pDst,
uint32_t blockSize);
/**
* @brief Hft144d window (double).
* @param[out] pDst points to the output generated window
* @param[in] blockSize number of samples in the window
*
* @par Parameters of the window
*
* | Parameter | Value |
* | ------------------------------------: | -----------------: |
* | Peak sidelobe level | 144.1 dB |
* | Normalized equivalent noise bandwidth | 4.5386 bins |
* | Flatness | 0.0021 dB |
* | Recommended overlap | 79.9 % |
*
*/
void arm_hft144d_f64(
float64_t * pDst,
uint32_t blockSize);
/**
* @brief Hft144d window (float).
* @param[out] pDst points to the output generated window
* @param[in] blockSize number of samples in the window
*
* @par Parameters of the window
*
* | Parameter | Value |
* | ------------------------------------: | -----------------: |
* | Peak sidelobe level | 144.1 dB |
* | Normalized equivalent noise bandwidth | 4.5386 bins |
* | Flatness | 0.0021 dB |
* | Recommended overlap | 79.9 % |
*
*
*/
void arm_hft144d_f32(
float32_t * pDst,
uint32_t blockSize);
/**
* @brief Hft169d window (double).
* @param[out] pDst points to the output generated window
* @param[in] blockSize number of samples in the window
*
* @par Parameters of the window
*
* | Parameter | Value |
* | ------------------------------------: | -----------------: |
* | Peak sidelobe level | 169.5 dB |
* | Normalized equivalent noise bandwidth | 4.8347 bins |
* | Flatness | 0.0017 dB |
* | Recommended overlap | 81.2 % |
*
*/
void arm_hft169d_f64(
float64_t * pDst,
uint32_t blockSize);
/**
* @brief Hft169d window (float).
* @param[out] pDst points to the output generated window
* @param[in] blockSize number of samples in the window
*
* @par Parameters of the window
*
* | Parameter | Value |
* | ------------------------------------: | -----------------: |
* | Peak sidelobe level | 169.5 dB |
* | Normalized equivalent noise bandwidth | 4.8347 bins |
* | Flatness | 0.0017 dB |
* | Recommended overlap | 81.2 % |
*
*
*/
void arm_hft169d_f32(
float32_t * pDst,
uint32_t blockSize);
/**
* @brief Hft196d window (double).
* @param[out] pDst points to the output generated window
* @param[in] blockSize number of samples in the window
*
* @par Parameters of the window
*
* | Parameter | Value |
* | ------------------------------------: | -----------------: |
* | Peak sidelobe level | 196.2 dB |
* | Normalized equivalent noise bandwidth | 5.1134 bins |
* | Flatness | 0.0013 dB |
* | Recommended overlap | 82.3 % |
*
*/
void arm_hft196d_f64(
float64_t * pDst,
uint32_t blockSize);
/**
* @brief Hft196d window (float).
* @param[out] pDst points to the output generated window
* @param[in] blockSize number of samples in the window
*
* @par Parameters of the window
*
* | Parameter | Value |
* | ------------------------------------: | -----------------: |
* | Peak sidelobe level | 196.2 dB |
* | Normalized equivalent noise bandwidth | 5.1134 bins |
* | Flatness | 0.0013 dB |
* | Recommended overlap | 82.3 % |
*
*
*/
void arm_hft196d_f32(
float32_t * pDst,
uint32_t blockSize);
/**
* @brief Hft223d window (double).
* @param[out] pDst points to the output generated window
* @param[in] blockSize number of samples in the window
*
* @par Parameters of the window
*
* | Parameter | Value |
* | ------------------------------------: | -----------------: |
* | Peak sidelobe level | 223.0 dB |
* | Normalized equivalent noise bandwidth | 5.3888 bins |
* | Flatness | 0.0011 dB |
* | Recommended overlap | 83.3 % |
*
*/
void arm_hft223d_f64(
float64_t * pDst,
uint32_t blockSize);
/**
* @brief Hft223d window (float).
* @param[out] pDst points to the output generated window
* @param[in] blockSize number of samples in the window
*
* @par Parameters of the window
*
* | Parameter | Value |
* | ------------------------------------: | -----------------: |
* | Peak sidelobe level | 223.0 dB |
* | Normalized equivalent noise bandwidth | 5.3888 bins |
* | Flatness | 0.0011 dB |
* | Recommended overlap | 83.3 % |
*
*
*/
void arm_hft223d_f32(
float32_t * pDst,
uint32_t blockSize);
/**
* @brief Hft248d window (double).
* @param[out] pDst points to the output generated window
* @param[in] blockSize number of samples in the window
*
* @par Parameters of the window
*
* | Parameter | Value |
* | ------------------------------------: | -----------------: |
* | Peak sidelobe level | 248.4 dB |
* | Normalized equivalent noise bandwidth | 5.6512 bins |
* | Flatness | 0.0009 dB |
* | Recommended overlap | 84.1 % |
*
*/
void arm_hft248d_f64(
float64_t * pDst,
uint32_t blockSize);
/**
* @brief Hft248d window (float).
* @param[out] pDst points to the output generated window
* @param[in] blockSize number of samples in the window
*
* @par Parameters of the window
*
* | Parameter | Value |
* | ------------------------------------: | -----------------: |
* | Peak sidelobe level | 248.4 dB |
* | Normalized equivalent noise bandwidth | 5.6512 bins |
* | Flatness | 0.0009 dB |
* | Recommended overlap | 84.1 % |
*
*
*/
void arm_hft248d_f32(
float32_t * pDst,
uint32_t blockSize);
#ifdef __cplusplus
}
#endif
#endif /* ifndef _BASIC_MATH_FUNCTIONS_H_ */
发表于 2023-1-29 03:50:07
发表于 2023-1-29 13:31:30
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