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说明： 2. 关于无线信道的多普勒谱，请回答以下问题：
(1) 在某些无线信道中，多普勒频移会引起无线信道输出信号的混叠。请描述产生混叠的各种原因；
(2) 无线信道中的多普勒谱有一种经典谱(classic spectrum)，请解释产生这种谱形状的机理；
(3) 请用Simulink工具编写代码(S-Function方式)，产生一单径瑞利信道，其多普勒谱为经典谱，其中移动速率为120km/h。并请描述：自己用计算机产生的经典谱是正确的依据。(2. Regarding the doppler spectrum of the wireless channel, please answer the following questions:
(1) in some wireless channels, doppler frequency shift will cause aliasing of the output signals of the wireless channel.Describe the various causes of aliasing;
(2) there is a classic spectrum in the doppler spectrum in the wireless channel, please explain the mechanism of producing this spectrum shape;
(3) please use Simulink tool to write code (s-function mode) to generate a single-path Rayleigh channel, whose doppler spectrum is the classical spectrum, in which the moving rate is 120km/h.And please describe: your own computer generated classical spectrum is the correct basis.)
- 2019-01-15 10:49:35下载
- 积分：1
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MATLAB 用DFT (FFT)对连续信号进行频谱分析
说明： 用DFT (FFT)对连续信号进行频谱分析(Spectrum Analysis of Continuous Signals Using DFT (FFT))
- 2020-06-25 05:40:02下载
- 积分：1
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bpsk
说明： 基带信号bpsk仿真，基带传输基本方波信号、sinc信号，对过程添加高斯白噪声，接收端用匹配滤波器进行接受，计算实际信号误码率，并于理论误码率进行比较(BPSK simulation of baseband signal. Baseband transmits basic square wave signal and sinc signal. Gaussian white noise is added to the process. Matched filter is used to receive the received signal. The error rate of actual signal is calculated and compared with the theoretical error rate)
- 2020-01-09 19:52:27下载
- 积分：1
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伪随机led
说明： 伪随机LED灯，实现八位LED灯的随机闪烁以及其它的控制。(Pseudo-random LED lamp)
- 2020-06-21 09:40:02下载
- 积分：1
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vb.RS232
模仿超级终端风格的RS232串口调试工具
这是一个模仿Windows系统带的超级终端风格的RS232串口调试工具。非常容易读取和写入端口，发送支持ASCII字符模式，可以打开二进制文件以16进制格式显示发送。支持工作内容保存，下次加载。
里面的那个动画窗体加载出现蛮有意思，大家可以学习下。尤其对调试AT指令之类的比较方便。(RS232 serial debug tool imitating super terminal style
This is a SuperTerminal style RS232 serial debugging tool that mimics the Windows system. It is easy to read and write ports, send ASCII character mode and open binary files to display in 16 binary format. Support work content to save, next load.
Loading the animated form inside is quite interesting. You can learn from it. In particular, it is more convenient to debug AT instructions.)
- 2018-04-24 11:31:53下载
- 积分：1
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DSPMwindow
产生数字信号处理中常用的几种窗函数，包括ectangular window , triangular window ,cosin window , Hanning window ,
Hamming window , Blackman window ,Papoulis window(producing a digital signal processing used in several window function, including ectangular window, triangular window. cosin window, Hanning window, Hamming window, Blackman window. Papoulis window)
- 2007-04-27 21:03:15下载
- 积分：1
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LabVIEWandUSB
说明： 利用动态链接库现LabVIEW与USB设备的数据通信(Is the use of dynamic-link library of LabVIEW and the USB data communication equipment)
- 2009-08-12 16:47:22下载
- 积分：1
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radarbasics
radar basics and about two a4 sheets.
- 2009-10-08 16:04:56下载
- 积分：1
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FMradio
simulink仿真收音机链路FM radio(Simulink simulation radio link)
- 2017-12-01 10:02:29下载
- 积分：1
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Jakes
说明： 采用Jakes模型的瑞利信道仿真matlab程序(Rayleigh Channel Simulation matlab Program Using Jakes Model)
- 2020-06-30 21:33:15下载
- 积分：1
