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[Communication-Mobile] 几种编码方式 DL : 0: A. 产生一个长为1000的二进制随机序列，“0”的概率为0.8，”1”的概率为0.2；B. 对上述数据进行归零AMI编码，脉冲宽度为符号宽度的50%，波形采样率为符号率的8倍，画出前20个符号对应的波形（同时给出前20位信源序列）；C. 改用HDB3码，画出前20个符号对应的波形；D. 改用密勒码，画出前20个符号对应的波形；E. 分别对上述1000个符号的波形进行功率谱估计，画出功率谱；F. 改变信源“0”的概率，观察AMI码的功率谱变化情况；-have a length of 1,000 random binary sequence, "0" with a probability of 0.8, "a" with a probability of 0.2; B. above zero AMI data coding, and pulse width of symbols width of 50%, waveform sampling rate Symbol rate for the eight times that he painted before the 20 symbols corresponding waveforms (also given before 20 Source sequence); C. HDB3 code switch to depict the former 20 symbols corresponding waveform; D. Miller to switch codes to depict the former 20 symbols corresponding waveform; E. respectively above 1,000 symbols for the power spectrum waveform estimated to depict the power spectrum; F. Change source "0" the probability to observe AMI code changes in the power spectrum;
Update : 2008-10-13 Size : 58.36kb Publisher : 郭慧勤
[Communication-Mobile] 几种编码方式 DL : 0: A. 产生一个长为1000的二进制随机序列，“0”的概率为0.8，”1”的概率为0.2；B. 对上述数据进行归零AMI编码，脉冲宽度为符号宽度的50%，波形采样率为符号率的8倍，画出前20个符号对应的波形（同时给出前20位信源序列）；C. 改用HDB3码，画出前20个符号对应的波形；D. 改用密勒码，画出前20个符号对应的波形；E. 分别对上述1000个符号的波形进行功率谱估计，画出功率谱；F. 改变信源“0”的概率，观察AMI码的功率谱变化情况；-have a length of 1,000 random binary sequence, "0" with a probability of 0.8, "a" with a probability of 0.2; B. above zero AMI data coding, and pulse width of symbols width of 50%, waveform sampling rate Symbol rate for the eight times that he painted before the 20 symbols corresponding waveforms (also given before 20 Source sequence); C. HDB3 code switch to depict the former 20 symbols corresponding waveform; D. Miller to switch codes to depict the former 20 symbols corresponding waveform; E. respectively above 1,000 symbols for the power spectrum waveform estimated to depict the power spectrum; F. Change source "0" the probability to observe AMI code changes in the power spectrum;
Update : 2025-02-17 Size : 58kb Publisher : 郭慧勤
[Special Effects] 1111 DL : 0: 数字图象处理教程 INTRODUCTION 4 DIGITAL IMAGE DEFINITIONS 5 COMMON VALUES 6 CHARACTERISTICS OF IMAGE OPERATIONS 7 TYPES OF OPERATIONS 7 TYPES OF NEIGHBORHOODS 8 VIDEO PARAMETERS 9 TOOLS 9 CONVOLUTION 10 PROPERTIES OF CONVOLUTION 10 FOURIER TRANSFORMS 10 PROPERTIES OF FOURIER TRANSFORMS 11 IMPORTANCE OF PHASE AND MAGNITUDE 14 CIRCULARLY SYMMETRIC SIGNALS 15 EXAMPLES OF 2D SIGNALS AND TRANSFORMS 15 STATISTICS 16 PROBABILITY DISTRIBUTION FUNCTION OF THE BRIGHTNESSES 16 PROBABILITY DENSITY FUNCTION OF THE BRIGHTNESSES 16 AVERAGE 18 STANDARD DEVIATION 19 COEFFICIENT-OF-VARIATION 19 PERCENTILES 19-INTRODUCTION 4 DIGITAL IMAGE DEFINITIONS 5 COMMON VALUES 6 CHARACTERISTICS OF IMAGE OPERATIONS 7 TYPES OF OPERATIONS 7 TYPES OF NEIGHBORHOODS 8 VIDEO PARAMETERS 9 TOOLS 9 CONVOLUTION 10 PROPERTIES OF CONVOLUTION 10 FOURIER TRANSFORMS 10 PROPERTIES OF FOURIER TRANSFORMS 11 IMPORTANCE OF PHASE AND MAGNITUDE 14 CIRCULARLY SYMMETRIC SIGNALS 15 EXAMPLES OF 2D SIGNALS AND TRANSFORMS 15 STATISTICS 16 PROBABILITY DISTRIBUTION FUNCTION OF THE BRIGHTNESSES 16 PROBABILITY DENSITY FUNCTION OF THE BRIGHTNESSES 16 AVERAGE 18 STANDARD DEVIATION 19 COEFFICIENT-OF-VARIATION 19 PERCENTILES 19 MODE 20 SIGNALTONOISE RATIO 20 CONTOUR REPRESENTATIONS 21 CHAIN CODE 21 CHAIN CODE PROPERTIES 22 CRACK CODE 22 RUN CODES 23 PERCEPTION 23 BRIGHTNESS SENSITIVITY 23 WAVELENGTH SENSITIVITY 24 STIMULUS SENSITIVITY 24 SPATIAL FREQUENCY SENSITIVITY 25 COLOR SENSITIVITY 26 STANDARD OBSERVER 26 CIE CHROMATICITY COORDINATES 26 OPTICAL ILLUSIONS 28 IMAGE SAMPLING 30 SAMPLING DENSITY FO
Update : 2025-02-17 Size : 2.52mb Publisher : sean
[SCM] DecodeRadio DL : 0: 软件无线通讯解码驱动本文件主要应用定时间隔时间采样来解码无线通讯编码信号，信号依据 PT2262 编码格式来解码；对于无线通讯编码信号不间断连续采样，取连续两串解出的相同编码为解到的有效数据码。-Software-driven wireless communications decoding main application of this document from time to time interval time sampling to decode encoded signals wireless communications, signal encoding formats based on PT2262 to decode coded signals for wireless communications uninterrupted continuous sampling, take a row out of two strings of the same solution as the solution to the encoding The valid data codes.
Update : 2025-02-17 Size : 13kb Publisher : 磊元
[matlab] quantizationandperiodograms DL : 0: Plot the periodograms of the random data line codes and to multiply fft output with sampling time to make it similar to the analog counterpart. task 1 and 2 are about quantization
Update : 2025-02-17 Size : 1kb Publisher : abid
[matlab] audio DL : 0: the matlab codes for sampling audio file and filtering it.
Update : 2025-02-17 Size : 588kb Publisher : mojeebbala
[Mathimatics-Numerical algorithms] FH-SS DL : 0: 要进行误码率的计算，需要分两步进行，即抽样和判决。假设信源信息码长度为M，每个信息码包含N 个采样点数，则，先从第一个信息码的N 个采样点中，随机抽取i 个，判断是否全为1，或全为－1，这样就确定了此信息码为1 还是－1；以同样的方法对输出的信息码再做一次，最后将两个信息码的判断结果进行比较，不同就记录下来，进行累加，相同则进行下一次循环。M 个循环后，把累加和的结果除以M，就得到本系统的误码率了。 -To calculate the error rate, you need two steps, namely, sampling and decision. Assuming the information source code length M, each message contains N sampling points code, then, starting with the first information code of the N sampling points, randomly selected i-, 1 to determine whether all, or are all-1 , so this information to determine the code is 1 or-1 in the same way the information on the output of code to do it again, the last two codes to determine the information to compare the results with different to record the accumulation, the same will be the next cycle. M cycles, the accumulation and by the outcome of M, to obtain the BER of the system.
Update : 2025-02-17 Size : 3kb Publisher : liuyanan
[matlab] Programs DL : 0: This Codes Show Sampling and aliasing in a wave
Update : 2025-02-17 Size : 1kb Publisher : abbas
[SCM] AVR-MCU-development DL : 0: 利用ATmega16单片机实现对电压值的采样，经芯片内部AD转换，再调用程序将AD转换值转换为实际电压值，并用数码管显示。再由串行通信接口将数据传送到PC机显示，并用2个键控制采样速度。附带原理图，编程代码。-Use ATmega16 microcomputer for voltage sampling, the chip AD conversion, then convert a AD value to the actual voltage values and display on digital tube .The serial communication interface transmit the data to a PC display, and 2 keys to control the sampling rate. this file includes schematics, programming codes.
Update : 2025-02-17 Size : 137kb Publisher : 姜伟
[Software Engineering] GPS-simulation DL : 0: 在Microsoft Visual C++软件环境下，用C++ 语言实现整个仿真。将整个产生系统分为C/A码产生，信号产生，量化三个模块，经过编写和调制实现产生的基本功能，即输入导航电文及控制数据，例如选取卫星信号，多普勒频移，采样周期。最后可以得到加入服从高斯分布的噪声信号的数字离散中频信号。 -We use the C++ language to archive the simulation in the Microsoft Visual C++ circumstance. The entire generating system is divided into three parts,including C/A Code, Signal Generating and Quantizer. After writing codes and checking and confirming, I archive the basic functions. If you input the guiding codes and controldata like satellite selecting signal, Doppler frequency movement, sampling period, at last you can get the digital middle frequency signals with gauss distributing noise
Update : 2025-02-17 Size : 527kb Publisher : luchan
[ELanguage] DSP DL : 0: Different DSP related source codes pertaining to FFT,Convolution,filtering,concatenation of signals in different frequencies,sampling including upsampling & downsampling
Update : 2025-02-17 Size : 4kb Publisher : goldriver92
[Other] audio_latest.tar DL : 0: Audio Codec(ADPCM 1-Bit) The code is ready for Altera Cyclone-II DE1 Starter board and it is tested, you can modify codes and use them in any project. Core Description: Sampling Frequency: 44100Hz Channels: Stereo Bit-rate: 1 Bit Per Sample(So it is: 44.1 * 2 = 88.2kbps) Compression Ratio: 16:1
Update : 2025-02-17 Size : 6.18mb Publisher : Siva Sankar Garika
[File Operate] plot-cars-lda-mcs DL : 2: 五组在matlab中应用的小程序：（1）carspls and carsplslda，竞争性自适应重加权算法（cars）筛选特征变量，并建立PLS定量或定性模型（2）mcuvepls 蒙特卡罗抽样无关信息消除后，建立PLS定量和定性模型（3）osc，正交信号校正的多变量数据处理方法（4）plot cars-lda-mcs,表征cars-lda-mcs的结果（5）demo 对以上carspls and carsplslda，mcuvepls 方法在matlab中实现举例演示-Five groups codes in matlabapplication: (1) carspls and carsplslda, competitive adaptive re-weighted algorithm (cars) for characteristic variables selection, and the establishment of PLS quantitative or qualitative model (2) mcuvepls， Monte Carlo sampling and the uninformative variables elimination （UVE）， and the establishment of quantitative and qualitative PLS model (3) Orthagnal signal correction（osc）, multivariate data processing method (4) plot cars-lda-mcs, characterization results of cars-lda-mcs (5) the demo about carspls and carsplslda, mcuvepls method implementation in matlab
Update : 2025-02-17 Size : 4kb Publisher : 詹雪
[SCM] 10BITAD DL : 0: 十位数字电压表的AD采样代码，TLC1543-Ten digital voltmeter AD sampling codes, TLC1543
Update : 2025-02-17 Size : 31kb Publisher : 吴彬彬
[Algorithm] rs DL : 0: RS码又称里所码，即Reed-solomon codes，是一种前向纠错的信道编码，对由校正过采样数据所产生的多项式有效。当接收器正确的收到足够的点后，它就可以恢复原来的多项式，即使接收到的多项式上有很多点被噪声干扰失真。-RS code, also known as the code, that is, codes Reed-solomon, is a forward error correction of the channel coding, the data generated by the correction of the sampling data is valid. When the receiver is correctly received enough points, it can restore the original polynomial, even if the received polynomial has a lot of noise distortion.
Update : 2025-02-17 Size : 5kb Publisher : wyp112
[Software Engineering] 1126code DL : 0: 网站商城的后台框架和模板，在后台开发总会用的到- LBP returns the local binary pattern image or LBP histogram of an image. J LBP(I,R,N,MAPPING,MODE) returns either a local binary pattern coded image or the local binary pattern histogram of an intensity image I. The LBP codes are computed using N sampling points on a circle of radius R and using mapping table defined by MAPPING. See the getmapping function for different mappings and use 0 for no mapping. Possible values for MODE are h or hist to get a histogram of LBP codes nh to get a normalized histogram Otherwise an LBP code image is returned. J LBP(I) returns the original (basic) LBP histogram of image I J LBP(I,SP,MAPPING,MODE) computes the LBP codes using n sampling points defined in (n* 2) matrix SP. The sampling points should be defined around the origin (coordinates (0,0)). Examples I imread( rice.png ) mapping getmapping(8, u2 ) H1 LBP(I,1
Update : 2025-02-17 Size : 17kb Publisher : 明庭良
[Other] SSIM_two-model DL : 0: SSIM model , 降采样和不降采样，两种代码-SSIM model, down-sampling and non-sampling down, two codes
Update : 2025-02-17 Size : 4kb Publisher : jacob
[AI-NN-PR] NLDA DL : 0: 利用matlab实现基于NLDA的人脸识别算法，如有需求做RLDA和bagging NLDA并利用sum rule或者majority rule请参照http://shop.zbj.com/14563255/sid-1213623.html-Matlab codes for NLDA, bagging NLDA, random sampling LDA, Integrating Random Subspace and Bagging for LDA Based Face Recognition using majority vote and sum rule. For more details, please refer to http://shop.zbj.com/14563255/sid-1213623.html
Update : 2025-02-17 Size : 4.65mb Publisher : July科技
[AI-NN-PR] bagging-NLDA-and-RLDA DL : 0: 利用matlab实现NLDA人脸识别算法，更详细的random sampling LDA, bagging NLDA和整合LDA算子利用majority vote 和sum rule的matlab 代码，人脸库使用ORL库或者XM2VTS库，地址：http://shop.zbj.com/14563255/sid-1213623.html- matlab codes for NLDA face detection, the face s are ORL. More details about random sampling LDA, bagging NLDA, Integrating Random Subspace and Bagging for LDA Based Face Recognition using majority vote and sum rule please refer tohttp://shop.zbj.com/14563255/sid-1213623.html
Update : 2025-02-17 Size : 4.68mb Publisher : July科技
[matlab] Rejection_Sampling_Tutorial DL : 0: 拒绝采样算法的matlab程序，可用于参数估计和模式识别(matlab codes for rejection sampling algorithm, which can be used for parameter estimation and pattern recognition.)
Update : 2025-02-17 Size : 1kb Publisher : daoguang

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