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[Post-TeleCom sofeware systems] BPSK Transmitter DL : 0: The basic parts of the BFSK transmitter are the preamble and the data input circuit. The preamble sequence is positioned in front of each packet of 122 bits for a total of 128 bits packet. The main purpose of the preamble is to facilitate the reception, providing both bit and packet synchronization. The data input circuit mainly consists from memory elements and a convolutional encoder with r=1/2. Thus, the input bits must be stored in a temporary memory and be partitioned in blocks of 61 bits. Then the convolutional encoder doubles the bits and adds two more trail bits at the end of the message. A multiplexer makes sure that that the correct sequence, choosing between preamble and encoded bit, is propagating to the next stage. The next stage of the transmitter consists of two direct digital synthesizers (DDS), and a multiplexer that is fed with zeros and ones to choose between the two frequencies. For each bit, we allow 64 samples of the respective frequency to be transmitted. Although the implementation of the selection between the two frequencies is strait forward, the enable port of the multiplexer should be used along with a Matlab Code (MCode) block in order to prevent the propagation of some initial undefined states during initialization. The only functionality of the MCode block is to enable the multiplexer after the first bit of the preamble is detected. Finally, pulse shaping is not used and the addition of a single filter after the last multiplexer would suffice to implement this functionality.
Date : 2011-03-18 Size : 30.65kb User : publicxz
[Post-TeleCom sofeware systems] UnscentedParticleFilter DL : 0: 基于次优贝叶斯估计的非线形非高斯条件下的粒子滤波器的MATELAB仿真-based Bayesian estimation of non-linear non-Gaussian under the conditions of the particle filter simulation MATELAB
Date : 2026-01-08 Size : 34kb User : husheng
[Post-TeleCom sofeware systems] iir_filters DL : 0: 说明：这个代码是基于FPGA的数字IIR无限长冲激响应滤波器的源代码．-Note : This code is based on the number of FPGA IIR infinite impulse response filter the source code.
Date : 2026-01-08 Size : 1kb User : 李军
[Post-TeleCom sofeware systems] FIR_IIR DL : 0: 关于Digital Signal Process中FIR ， IIR滤波器的设计与实现-on Digital Signal Process FIR. IIR Filter Design and Implementation
Date : 2026-01-08 Size : 1kb User : Shao Dan
[Post-TeleCom sofeware systems] fir_design DL : 0: 滤波器设计.rar matlab 带有滤波器系数,已经在matlab上测试通过.-filter design. Rar filter coefficients with Matlab, Matlab already on the test.
Date : 2026-01-08 Size : 1.87mb User : jinchuanxue
[Post-TeleCom sofeware systems] CICFILTERPROCESS.GZ DL : 0: CIC滤波器的仿真程序，可以变换ＣＩＣ滤波器的级联级数及a值．-CIC filter simulation program, so will the CIC filter and a cascading series values.
Date : 2026-01-08 Size : 24kb User :
[Post-TeleCom sofeware systems] programmable_switch-capacitance_filter_design DL : 0: 可程控开关电容滤波器设计的三部分代码。用到的芯片有AT89C2051、MAX261等。-programmable switched-capacitor filter design of the three-part code. The chip is used AT89C2051, MAX261, and so on.
Date : 2026-01-08 Size : 3kb User : 杨武马
[Post-TeleCom sofeware systems] adbfilter DL : 0: adaptive filter simulation program
Date : 2026-01-08 Size : 1kb User : 冯杰
[Post-TeleCom sofeware systems] butterworthbandstop DL : 0: 用c++编的巴特沃斯带阻滤波器原程序，可得带阻滤波器数字系统函数的各阶系数．可在ＭＡＴＬＡＢ中用ＦＩＬＴＥＲ函数进行测试，好象还没有带阻的-With c++ Series Butterworth band stop filter the original procedure, available band-stop filter digital system function coefficient of each order. FILTER can be used in the MATLAB function testing, as if not yet the band-stop
Date : 2026-01-08 Size : 157kb User : dou yuan
[Post-TeleCom sofeware systems] butterworthlowpass DL : 0: butterworth低通滤波器的原程序，可用ＭＡＴＬＡＢ的ＦＩＬＴＥＲ函数测试．可得到低通滤波器数字系统函数的系数．-Butterworth low-pass filter the original procedure, MATLAB can be used to test the FILTER function. Available to low-pass filter function of the coefficient of digital systems.
Date : 2026-01-08 Size : 172kb User : dou yuan
[Post-TeleCom sofeware systems] butterworthhighpass DL : 0: butterworth高通滤波器的原程序，可用ＭＡＴＬＡＢ的ＦＩＬＴＥＲ函数测试．可得到高通滤波器数字系统函数的系数．-Butterworth high-pass filter the original procedure, MATLAB can be used to test the FILTER function. Available high-pass filter function of the coefficient of digital systems.
Date : 2026-01-08 Size : 143kb User : dou yuan
[Post-TeleCom sofeware systems] notchfilter1 DL : 0: 抑制单频干扰陷波器，没有解压密码，能够自适应检测单频干扰的存在 -Single-frequency interference suppression notch filter, there is no decompression password to adaptive testing the existence of single-frequency interference
Date : 2026-01-08 Size : 1kb User : 杨竟
[Post-TeleCom sofeware systems] 30002756885 DL : 0: 用于滤波的粒子滤波，程序还好，请个位指教-Particle filter for filtering, the program better, please advice a bit
Date : 2026-01-08 Size : 9kb User : lhqqtxy
[Post-TeleCom sofeware systems] FIR DL : 0: 夲程序实现了FIR数字滤波器的设计，其界面设计完美，且代码简单，实现的功能较多且参数设置灵活。-夲procedures realize the FIR digital filter design, its interface design perfect, and the code is simple, and realize the function of more flexible parameter settings.
Date : 2026-01-08 Size : 3kb User : 汪芸
[Post-TeleCom sofeware systems] ofdm DL : 0: ofdm系统的FFT滤波器及完成OFDM解调-FFT filter ofdm system and the completion of OFDM demodulation
Date : 2026-01-08 Size : 8kb User : majie
[Post-TeleCom sofeware systems] liu5 DL : 0: 升余弦滚降滤波系统的误码率通信原理的应用-Raised cosine filter roll-off system bit error rate of application of the principle of communication
Date : 2026-01-08 Size : 1kb User : 紫岚燕子
[Post-TeleCom sofeware systems] filter DL : 0: 有限脉冲响应的滤波器，用于信号的滤波在rf电路中有用-Finite impulse response filter for the signal filter in the RF circuit useful
Date : 2026-01-08 Size : 1kb User : suzhiqing
[Post-TeleCom sofeware systems] partical-filter DL : 0: 粒子滤波程序有助于对粒子滤波初步了解加深对粒子滤波的认识-Particle filter program helps a preliminary understanding of the particle filter to a better understanding of the particle filter
Date : 2026-01-08 Size : 4kb User : hanxue
[Post-TeleCom sofeware systems] digital-filter DL : 0: 包含有信号源的数字滤波器设计，文件中包含有高通，低通，带通，带阻四种数字滤波器。-The program is used to design a digital filter.There are four kinds of digital filter included in the file.
Date : 2026-01-08 Size : 4kb User : 何欢
[Post-TeleCom sofeware systems] cosine-filter DL : 0: cosine 滤波器，主要用于通信系统中对噪声的滤除-cosine filter is mainly used in communication systems to filter out noise
Date : 2026-01-08 Size : 1kb User : 杨松林

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