Description: MASK译码器设计代码MASK调制方式是采用多电平基带信号对一个高频载波进行平衡调制，得到多种幅度的高频已调波。它在频谱上是载波抑制的双边带信号，单侧边带的带宽等于基带信号本身的带宽，所以整个已调波带宽是基带信号带宽的二倍。 《通信原理》的课程设计-MASK code decoder design MASK modulation is multi-level baseband signal to a balanced high-frequency carrier modulation, has been a variety of high-frequency range has been transferred wave. Its spectrum is suppressed-carrier signal with bilateral, single side-band bandwidth base-band signal equivalent to their own bandwidth, so the whole tune-wave base-band bandwidth is twice the signal bandwidth. Communication Theory of curriculum design Platform: |
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Description: 脉冲编码调制（PCM）用于在数字传输媒体上传送模拟信号，在PCM中，首先对模拟信号以高于其带宽两倍的奈奎斯特率进行采样，然后对所得样本进行量化。采用不同量化级别生成的PCM编码会影响接收器重建模拟信号的质量。 -Pulse code modulation (PCM) for the media in the digital transmission of analog signal transmission in the PCM, the first analog signal to more than the Nyquist rate of twice the bandwidth sample, and then to quantify the samples. Using different quantization level generated PCM coding receiver will affect the quality of the reconstruction of analog signals. Platform: |
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Author:jack |
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Description: 这个Matlab的m代码解决了薛定谔方程，沿着带宽频率和相位偏移，显示三维图像。-The Matlab m-code to solve the Schrodinger equation along the bandwidth of the frequency and phase offset, showing three-dimensional image. Platform: |
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Author:雷锋 |
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Description: ex9_1 脉冲信号调制
ex9_2 载波10MHz，带宽2MHz的线性调频信号及其频谱图
ex9_3 产生7位巴克码编码的二相码
ex9_4 产生7位巴克码和线性调频的混合调制信号
ex9_5 瑞利分布实现程序
ex9_6 瑞利分布＋杂波
ex9_7 相关对数正态分布杂波
ex9_8 相关weibull分布杂波
ex9_9 相干相关K分布杂波
ex9_10 线性调频信号的数字化正交解调
ex9_11 雷达脉冲压缩处理
ex9_12 二相编码信号的脉压处理
ex9_13 用FFT和FIR方法实现MTD处理
ex9_14 雷达的恒虚警处理（CFAR）
ex9_15 比较相参积累和非相参积累-ex9_1 pulse signal modulation
ex9_2 carrier 10MHz, bandwidth of 2MHz and the linear frequency modulation signal frequency spectrum
7 Barker ex9_3 produce the two-phase coding code
7 Barker ex9_4 generated code and linear FM modulation of the mixed signal
Rayleigh distribution ex9_5 implementation procedures
Rayleigh distribution ex9_6+ Clutter
lognormal distribution ex9_7 related clutter
weibull distribution ex9_8 related clutter
Related ex9_9 coherent K distributed clutter
LFM signal ex9_10 digital quadrature demodulation
radar pulse compression ex9_11 treatment
ex9_12 BPSK signal pulse pressure treatment
ex9_13 Ways to use FFT and FIR implementation deal with MTD
ex9_14 CFAR radar deal (CFAR)
Comparison ex9_15 coherent and noncoherent Platform: |
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Author:张满超 |
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Description: QPSK信号在MATLAB上的仿真代码，载波频率为10HZ，信息速率为1Baud，信号经过带宽为2HZ的系统。-QPSK signal in the simulation of MATLAB code, the carrier frequency to 10HZ, the information rate of 1Baud, signal bandwidth of the system 2HZ. Platform: |
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Author:小武 |
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Description: This matlab code generates UWB indoor channel impulse response described in :
Cassioli, D. Win, M.Z. Molisch, A.F., "The ultra-wide bandwidth indoor channel: from statistical model to simulations," Selected Areas in Communications, IEEE Journal on , vol.20, no.6, pp. 1247-1257, Aug 2002
URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=1021916&isnumber=21989
All parameters of the channel were taken from the reference paper
-This matlab code generates UWB indoor channel impulse response described in :
Cassioli, D. Win, M.Z. Molisch, A.F., "The ultra-wide bandwidth indoor channel: from statistical model to simulations," Selected Areas in Communications, IEEE Journal on , vol.20, no.6, pp. 1247-1257, Aug 2002
URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=1021916&isnumber=21989
All parameters of the channel were taken from the reference paper
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Description: The multipath performance of a given signal/receiver combination depends on various signal and receiver parameters like signal type/modulation scheme pre correlation bandwidth and filter characteristics, chipping rate of code ,relative power levels of multipath signals ,chip spacing between correlators and type of discriminator used for tracking.
For the following analyses the influence of code multipath will be illustrated by means of multipath error envelopes.
In these diagrams, the resulting ranging errors are plotted as a function of geometric path delay .the computation of
multipath errors envelops is based on the assumption, that the direct signal component is always available and that only one
multipath signal is present-The multipath performance of a given signal/receiver combination depends on various signal and receiver parameters like signal type/modulation scheme pre correlation bandwidth and filter characteristics, chipping rate of code ,relative power levels of multipath signals ,chip spacing between correlators and type of discriminator used for tracking.
For the following analyses the influence of code multipath will be illustrated by means of multipath error envelopes.
In these diagrams, the resulting ranging errors are plotted as a function of geometric path delay .the computation of
multipath errors envelops is based on the assumption, that the direct signal component is always available and that only one
multipath signal is present Platform: |
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Author:Rafal |
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Description: 地震资料处理中带通滤波MATLAB源码程序。能根据需要选择滤波带宽。-Seismic data processing in the band-pass filtering MATLAB source code program. Need to select the bandwidth according to filtering. Platform: |
Size: 1024 |
Author:jcm |
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Description: 为了匹配信道特性达到较佳的传输效果，应选用适当码型，以便在最小传输带宽的条件下大大减小或消除这种干扰。选用了MATLAB软件进行了仿真，设计实现了一些简单的常用码型-In order to match the channel transmission characteristics to achieve better results, should use the appropriate code type, so that under the conditions of minimum transmission bandwidth substantially reduce or eliminate such interference. Use of the MATLAB simulation software, designed and implemented some simple common pattern Platform: |
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Author:nana |
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Description: the code describes about the aggregate scheduling , system model , bandwidth requirement , buffre requirements & the use of zigbee protocol for existing cluster tree wsn protocol that gives better output in worst case dimension protocols Platform: |
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Author:nehasharma |
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Description: 是winner II 即WIM2模型的软件matlab实现文档及源代码。实现日期是08年9月23日。可以支持100MHz带宽-Is the winner II model that WIM2 software matlab implementation documentation and source code. Implementation date is September 23, 2008. Can support 100MHz bandwidth Platform: |
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Author:展望 |
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Description: This report discusses the analys of Channel gain matrix to extract all channel informations like frequency reponse, impulse response, power delay profile, correlation bandwidth ets along with the matlab code Platform: |
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Author:mirza |
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Description: 基于有限元的矩形短边双脊波导的传输特性matlab代码包括衰减系数，单模带宽，截止波长功率容量等-Based on the short side of the rectangular finite element double-ridged waveguide transmission characteristics include attenuation coefficient matlab code, single-mode bandwidth cutoff wavelength power capacity, etc. Platform: |
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Author:黄庆福 |
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Description: Video summarization refers to creating a summary of a video. Medical examinations like endoscopy and bronchoscopy lasts more than 20 minutes .The doctor may not have sufficient time to watch the entire video or the whole of video content may not be of interest to the examiner. Sometimes the medical video has to be sent to a specialist who is located at a distant place. In such cases, the doctor may just want to view the summary of the video instead of watching the whole video. Thus , the summary should be such that it should convey as much information about the occurrence of various incidents in the video.
Video summarization plays an important role in efficient storage, quick browsing and retri of large collection of video data without losing important aspects. It also reduces transmission bandwidth efficiently when need arises. Efficient summarization of video recordings of bronchoscopic and endoscopic procedures is also highly relevant for the development of medical video libraries.
Video summarization refers to creating a summary of a video. Medical examinations like endoscopy and bronchoscopy lasts more than 20 minutes .The doctor may not have sufficient time to watch the entire video or the whole of video content may not be of interest to the examiner. Sometimes the medical video has to be sent to a specialist who is located at a distant place. In such cases, the doctor may just want to view the summary of the video instead of watching the whole video. Thus , the summary should be such that it should convey as much information about the occurrence of various incidents in the video.
Video summarization plays an important role in efficient storage, quick browsing and retri of large collection of video data without losing important aspects. It also reduces transmission bandwidth efficiently when need arises. Efficient summarization of video recordings of bronchoscopic and endoscopic procedures is also highly relevant for the development of medical video libraries.
-n refers to creating a summary of a video. Medical examinations like endoscopy and bronchoscopy lasts more than 20 minutes .The doctor may not have sufficient time to watch the entire video or the whole of video content may not be of interest to the examiner. Sometimes the medical video has to be sent to a specialist who is located at a distant place. In such cases, the doctor may just want to view the summary of the video instead of watching the whole video. Thus , the summary should be such that it should convey as much information about the occurrence of various incidents in the video.
Video summarization plays an important role in efficient storage, quick browsing and retri of large collection of video data without losing important aspects. It also reduces transmission bandwidth efficiently when need arises. Efficient summarization of video recordings of bronchoscopic and endoscopic procedures is also highly relevant for the development of medical video libraries.
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Author:Savi |
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Description: 高志强老师在2003年发表的基于带宽参数的控制器参数整定方法，里面介绍的LADRC（线性自抗扰控制器）例子对应的matlab代码与原文章，方便读者阅读与验证，减轻读者编程负担。-Teacher Gao Zhiqiang, published in 2003 based on bandwidth parameter of the controller parameter tuning method, which describes the LADRC (linear auto disturbance rejection controller example corresponding matlab code and the original article, convenient readers reading and verification, reduce the burden of programming readers. Platform: |
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Author:李扬森 |
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Description: Linear-Predictive-Coder
MATLAB Implementation of LPC algorithm for speech signal
# Why LPC?
In communication systems it is often necessary to transmit audio(speech) signal in compressed or encoded form because of bandwidth limitation of the channel. In this regard, ‘Linear predictive coding(LPC)’ is an effctive method of speech coding at a low bit-rate.
# Features
** Analysis/Encoding phase,Synthesis/Decoding phase.
**Human voice modelled with all-pole filter.
** LPC parameters(filter coefficients, pitch, gain etc) extraction at the decoding phase.
** Non-overlapping frames of 30 milliseconds in duration
# How To Run
** Make sure MATLAB(latest version) is installed
** Put both files(LPC.m with .mp3 file) in the same folder
** Open LPC.m file and run it.
## Comments
Different audio (.mp3) files can be coded/decoded by changing the input file name in the code. Platform: |
Size: 2048 |
Author:japaoli |
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Description: matlab代码：计算数字锁相环中数字滤波器的参数，满足稳定性和环路带宽要求。-matlab code: calculate the parameters of DLF in DPLL to meet the specific loop bandwidth and stability. Platform: |
Size: 2048 |
Author:Leozhang |
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Description: 仿真伪相位编码连续波雷达的信号处理。设码频为 5MHz，伪码周期内码长为511，雷达载频为 10GHz，输入噪声为高斯白噪声，视频输入信噪比为 -15dB，相干 积累总时宽不大于0ms，给出回波视频表达式，脉压和FFT后的表达式；仿真给 出脉压和FFT 后的输出图形；通过仿真说明各级处理的增益，与各级时宽和带宽的关系；仿真说明脉压时多卜勒敏感现象和多卜勒容限及其性能损失（脉压主旁比与多卜勒的曲线）(Simulation of pseudo phase coded CW radar signal processing. Suppose the code frequency is 5MHz, the code length in the pseudo code period is 511, the radar carrier frequency is 10GHz, the input noise is Gaussian white noise, the video input signal-to-noise ratio is - 15dB, the total coherent accumulation time width is not more than 0ms, the echo video expression, the expression after pulse pressure and FFT are given; the pulse pressure and FFT are given by simulation After that, the output graph; the relationship between the gain of each level of processing and the time width and bandwidth of each level through simulation; the phenomenon of Doppler sensitivity, Doppler tolerance and its performance loss during pulse compression (the curve of the ratio of main to side of pulse pressure and Doppler)) Platform: |
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Author:fvck123 |
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Search - bandwidth matlab code