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【Other resource】方便的小波变换原代码 DL : 0: 小波变换源代码 wav_basic.c: basic filtering, decimation and upsampling routines. wav_basic.h: interface to wav_basic.c. wav_trf.c: transform routines. wav_trf.h: interface to wav_trf.c. wav_filters.h: where filter banks and their properties are defined. wav_filters_extern.h: interface to wav_filters.h. wav_gen.h: some parameters and min/max macros. macros.h: pointer check macro. test_transforms.c: main routine for testing transforms and invertibility. test_denoise.c: main routine for the example denoising applications. alloc.c: pointer allocation/deallocation. alloc.h: interface to alloc.c. Makefile peppers.raw: 512x512 grayscale test image.-wavelet transform source code wav_basic.c : basic filtering, decimation and upsampling routines. wav_basi c.h : interface to wav_basic.c. wav_trf.c : transform routines. wav_trf.h : interface to wav_trf.c. wav_filters.h : where filter banks and their properties are def INED. wav_filters_extern.h : interface to wav_filters.h. wav_gen.h : some parameters and min / max macros. macros.h : pointer check macro. test_transforms.c : main routine for testing transforms and invert ibility. test_denoise.c : the main routine for example Denoising applica tions. alloc.c : pointer allocation / deallocation. alloc.h : interface to alloc.c. peppers.raw Makefile : 512x512 grayscale test image.
Update : 2008-10-13 Size : 204008 Publisher : 李强
【Crack Hack】 Decimation DL : 0: 数字水印方面的算法小程序希望能给刚刚接触数字水印的朋友一点帮助开发环境MATLAB-digital watermarking algorithm for the small programs just wanted to give digital watermarking contact friends to help develop environmental 1:00 M MATLAB
Update : 2008-10-13 Size : 2209 Publisher : 李铎
【Other resource】 Floating-point-complex-radix-2-decimation-in-time- DL : 0: 浮点复数基2时分FFT完成适当的FFT，输出改写输入缓冲器。-floating-point complex FFT-based two hours to complete the FFT output rewritten input buffer.
Update : 2008-10-13 Size : 1440 Publisher : minytian
【Other resource】 xbbhydm DL : 0: wav_basic.c: basic filtering, decimation and upsampling routines. wav_basic.h: interface to wav_basic.c. wav_trf.c: transform routines. wav_trf.h: interface to wav_trf.c. wav_filters.h: where filter banks and their properties are defined. wav_filters_extern.h: interface to wav_filters.h. wav_gen.h: some parameters and min/max macros. macros.h: pointer check macro. test_transforms.c: main routine for testing transforms and invertibility. test_denoise.c: main routine for the example denoising applications. alloc.c: pointer allocation/deallocation. alloc.h: interface to alloc.c. Makefile peppers.raw: 512x512 grayscale test image.
Update : 2008-10-13 Size : 205109 Publisher : 新月
【Develop Tools】 decimation DL : 0: 音频信号降采样程序支持48k->8k 24k->8k 8k->1k 的降采样.实现方法,先做低通滤波,再做采样点抽取.低通滤波起使用67点FIR,系数由matlab使用窗函数法生成
Update : 2008-10-13 Size : 71933 Publisher : 张鹏
【Other resource】 200628111717 DL : 0: DFT(Discrete Fourier Transformation)是数字信号分析与处理如图形、语音及图像等领域的重要变换工具，直接计算DFT的计算量与变换区间长度N的平方成正比。当N较大时，因计算量太大，直接用DFT算法进行谱分析和信号的实时处理是不切实际的。快速傅立叶变换(Fast Fourier Transformation，简称FFT)使DFT运算效率提高1～2个数量级。其原因是当N较大时，对DFT进行了基4和基2分解运算。FFT算法除了必需的数据存储器ram和旋转因子rom外，仍需较复杂的运算和控制电路单元，即使现在,实现长点数的FFT仍然是很困难。本文提出的FFT实现算法是基于FPGA之上的，算法完成对一个序列的FFT计算，完全由脉冲触发，外部只输入一脉冲头和输入数据，便可以得到该脉冲头作为起始标志的N点FFT输出结果。由于使用了双ram，该算法是流型(Pipelined)的，可以连续计算N点复数输入FFT，即输入可以是分段N点连续复数数据流。采用DIF(Decimation In Frequency)-FFT和DIT(Decimation In Time)-FFT对于算法本身来说是无关紧要的，因为两种情况下只是存储器的读写地址有所变动而已，不影响算法的结构和流程，也不会对算法复杂度有何影响。
Update : 2008-10-13 Size : 59183 Publisher : 吴庆庆
【Algorithm】 LabVIEW CIC Filter for 1bit PDM DL : 4: LabVIEW編寫之多階 Cascaded Integrator Comb Decimation Filter, 用於解調1bit PDM 數字資料流, 還原成時域波形, 程式一併產生頻域波形及SNR, THD分析. 1bit PDM 數字流常由Delta-Sigma ADC產生, MEMS數字麥克風亦輸出此格式數字流. 程式版本: LabVIEW 2009 with S&V module, Digital Filter toolkit.
Update : 2010-10-13 Size : 587134 Publisher : kbxkbx
【Wavelet】方便的小波变换原代码 DL : 0: 小波变换源代码 wav_basic.c: basic filtering, decimation and upsampling routines. wav_basic.h: interface to wav_basic.c. wav_trf.c: transform routines. wav_trf.h: interface to wav_trf.c. wav_filters.h: where filter banks and their properties are defined. wav_filters_extern.h: interface to wav_filters.h. wav_gen.h: some parameters and min/max macros. macros.h: pointer check macro. test_transforms.c: main routine for testing transforms and invertibility. test_denoise.c: main routine for the example denoising applications. alloc.c: pointer allocation/deallocation. alloc.h: interface to alloc.c. Makefile peppers.raw: 512x512 grayscale test image.-wavelet transform source code wav_basic.c : basic filtering, decimation and upsampling routines. wav_basi c.h : interface to wav_basic.c. wav_trf.c : transform routines. wav_trf.h : interface to wav_trf.c. wav_filters.h : where filter banks and their properties are def INED. wav_filters_extern.h : interface to wav_filters.h. wav_gen.h : some parameters and min/max macros. macros.h : pointer check macro. test_transforms.c : main routine for testing transforms and invert ibility. test_denoise.c : the main routine for example Denoising applica tions. alloc.c : pointer allocation/deallocation. alloc.h : interface to alloc.c. peppers.raw Makefile : 512x512 grayscale test image.
Update : 2024-04-28 Size : 203776 Publisher : 李强
【Algorithm】 Floating-point-complex-radix-2-decimation-in-time- DL : 0: 浮点复数基2时分FFT完成适当的FFT，输出改写输入缓冲器。-floating-point complex FFT-based two hours to complete the FFT output rewritten input buffer.
Update : 2024-04-28 Size : 1024 Publisher : minytian
【Wavelet】 xbbhydm DL : 0: wav_basic.c: basic filtering, decimation and upsampling routines. wav_basic.h: interface to wav_basic.c. wav_trf.c: transform routines. wav_trf.h: interface to wav_trf.c. wav_filters.h: where filter banks and their properties are defined. wav_filters_extern.h: interface to wav_filters.h. wav_gen.h: some parameters and min/max macros. macros.h: pointer check macro. test_transforms.c: main routine for testing transforms and invertibility. test_denoise.c: main routine for the example denoising applications. alloc.c: pointer allocation/deallocation. alloc.h: interface to alloc.c. Makefile peppers.raw: 512x512 grayscale test image.-wav_basic.c: basic filtering, decimation and upsampling routines.wav_basic.h: interface to wav_basic.c.wav_trf.c: transform routines.wav_trf.h: interface to wav_trf.c.wav_filters.h: where filter banks and their properties are defined.wav_filters_extern.h: interface to wav_filters.h.wav_gen.h: some parameters and min/max macros.macros.h: pointer check macro.test_transforms.c: main routine for testing transforms and invertibility.test_denoise.c: main routine for the example denoising applications.alloc.c: pointer allocation/deallocation.alloc.h: interface to alloc.c.Makefilepeppers.raw: 512x512 grayscale test image.
Update : 2024-04-28 Size : 204800 Publisher : 新月
【Software Engineering】 123 DL : 0: :数字下变频技术是软件无线电的关键技术之一. 数字下变频技术是将宽带高速数据流信号变成窄带低速数据流信号,这个过程就是信号的抽取. 实现抽取的关键问题是如何实现抽取前的数字滤波,特别是多级抽取时滤波器的设计与实现. 对于一个具体信号进行多级抽取时滤波器的设计给出了一个可行的方案-: Digital down-conversion software radio technology is one of the key technologies. Digital down-conversion technology is a broadband high-speed data streams to signal low-speed data stream into a narrow-band signal, this process is the signal extraction. The realization of extraction, the key question is how to achieve pre-extraction digital filtering, especially when Multistage Decimation Filter Design and Implementation. For a specific signal when Multistage Decimation filter design are given a feasible solution
Update : 2024-04-28 Size : 204800 Publisher : 赵平
【Algorithm】 200628111717 DL : 0: DFT(Discrete Fourier Transformation)是数字信号分析与处理如图形、语音及图像等领域的重要变换工具，直接计算DFT的计算量与变换区间长度N的平方成正比。当N较大时，因计算量太大，直接用DFT算法进行谱分析和信号的实时处理是不切实际的。快速傅立叶变换(Fast Fourier Transformation，简称FFT)使DFT运算效率提高1～2个数量级。其原因是当N较大时，对DFT进行了基4和基2分解运算。FFT算法除了必需的数据存储器ram和旋转因子rom外，仍需较复杂的运算和控制电路单元，即使现在,实现长点数的FFT仍然是很困难。本文提出的FFT实现算法是基于FPGA之上的，算法完成对一个序列的FFT计算，完全由脉冲触发，外部只输入一脉冲头和输入数据，便可以得到该脉冲头作为起始标志的N点FFT输出结果。由于使用了双ram，该算法是流型(Pipelined)的，可以连续计算N点复数输入FFT，即输入可以是分段N点连续复数数据流。采用DIF(Decimation In Frequency)-FFT和DIT(Decimation In Time)-FFT对于算法本身来说是无关紧要的，因为两种情况下只是存储器的读写地址有所变动而已，不影响算法的结构和流程，也不会对算法复杂度有何影响。-err
Update : 2024-04-28 Size : 59392 Publisher : 吴庆庆
【Program doc】 rr DL : 0: 软件无线电中抽取滤波器的研究与FPGA实现.pdf-Software Radio Research and decimation filter FPGA realize. Pdf
Update : 2024-04-28 Size : 205824 Publisher : 郭坚
【VHDL-FPGA-Verilog】 DecimationFilterDesignforDDCandImplementingItwithF DL : 0: 本文介绍了在数字下变频(DDC) 中的抽取滤波器系统设计方法和具体实现方案。采用CIC 滤波器、HB 滤波器、FIR 滤波器三级级联的方式来降低采样率。通过实际验证,证明了设计的可行性-This article describes the digital down conversion (DDC) of the decimation filter system design methods and concrete realization of the program. Using CIC filter, HB filter, FIR filter cascade three-level approach to reduce the sampling rate. Through the actual authentication, to prove the feasibility of the design
Update : 2024-04-28 Size : 468992 Publisher : 会飞的鱼
【Wavelet】 waveletcodebyGuleryuz DL : 0: Guleryuz写的一个完整的小波变换的源代码。主要包括：wav_basic.c: basic filtering, decimation and upsampling routines. wav_basic.h: interface to wav_basic.c. wav_trf.c: transform routines. wav_trf.h: interface to wav_trf.c. wav_filters.h: where filter banks and their properties are defined. wav_filters_extern.h:interface to wav_filters.h. wav_gen.h: some parameters and min/max macros. macros.h: pointer check macro. test_transforms.c:main routine for testing transforms and invertibility. test_denoise.c: main routine for the example denoising applications. alloc.c: pointer allocation/deallocation. alloc.h: interface to alloc.c. -Guleryuz write a complete wavelet transform of the source code. Mainly include: wav_basic.c: basic filtering, decimation and upsampling routines.wav_basic.h: interface to wav_basic.c.wav_trf.c: transform routines.wav_trf.h: interface to wav_trf.c.wav_filters.h: where filter banks and their properties are defined.wav_filters_extern.h: interface to wav_filters.h.wav_gen.h: some parameters and min/max macros.macros.h: pointer check macro.test_transforms.c: main routine for testing transforms and invertibility.test_denoise.c : main routine for the example denoising applications.alloc.c: pointer allocation/deallocation.alloc.h: interface to alloc.c.
Update : 2024-04-28 Size : 205824 Publisher : Zhongren Wang
【Graph Drawing】 PRJ DL : 0: This program draws the butterfly structure for fft (decimation in frequency) processor.
Update : 2024-04-28 Size : 1024 Publisher : ank
【Other】 digitalimagedecimationinterpolation DL : 0: digital image decimation-interpolation
Update : 2024-04-28 Size : 591872 Publisher : stabs
【Communication-Mobile】 Implementation-of-Decimation-Process DL : 0: IMPLEMENTATION OF DECIMATION AND INTERPOLATION ON A GIVEN SEQUENCE AND ALSO I/D SAMPLING
Update : 2024-04-28 Size : 35840 Publisher : soppu
【Other】 Hogenauer-Decimation-and-Interpolation DL : 0: An Economical Class of Digital Filters for Decimation and Interpolation, Eugene B. Hogenauer
Update : 2024-04-28 Size : 776192 Publisher : JRB
【Other】 codes DL : 0: these are the codes related to signal processing: as decimation, interpolation,QMF bank design
Update : 2024-04-28 Size : 3072 Publisher : sruus

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