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This project aim was to build wireless software modem for data communication
between two computers using an acoustic interface in the voice frequency range (20Hz–
20,000Hz). The transmitting antenna is a speaker (frequency response of: 90Hz –
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,用MATLAB实现快跳频通信系统的仿真。主要应用了SIMULINK和COMMUNICATION BLOCKETS两个模块。整个设计包括了信源产生部分、发送部分、跳频调制部分、信道部分、接收部分和结果分析部分共六个模块,核心技术是伪随机序列的产生和频率合成器的设计,而关键技术是收发两端的伪随机码元的同步。伪随机码的产生用S-函数编程来开发自己的SIMULINK模块。同步的实现是收发两端采用相同的扩频脉冲触发。而且在设计中每个模块都采用了模块封装技术,从而简化了框图结构-Using MATLAB
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包括信号的调制与解调,经MATLAB仿真,其性能良好。-Including the signal modulation and demodulation, by the MATLAB simulation, its performance is good.
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直接序列扩频Matlab程序源码 直接序列扩频通信能有效地抵抗来自信道中的窄带干扰。在一个直扩通信系统中,扩频是通过伪噪声序列(PN)对发送的信息数据进行调制来实现的。在在接收端,原伪噪声序列与所收信号的的相关运算可将窄带干扰扩展到DS信号的整个频带,使干扰等效为幅度较低频谱较平坦的噪声;同时,将DS信号解扩,恢复原始信息数据。 可直接使用。
-Direct Sequence Spread Spectrum Matlab program source code direct sequence
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雷达测伪距 采用的正负调频法 matlab仿真源码 -The radar measured pseudorange positive and negative frequency modulation method matlab simulation source code
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matlab仿真。
对m序列和互补码序列的仿真:分别对m序列和四相互补码序列的发射,回波,和脉冲压缩进行了仿真。
同时包含线性调频信号(LFM)和m序列以及简单单脉冲的模糊函数仿真的文件。-The matlab simulation.
m sequence and complementary code sequence simulation: four-phanse complementary code and m sequence code s emission, echo, a
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CP-OFDM仿真,详细,有资料,有程序。-Matlab file for simulating a cyclic-prefix (CP) orthogonal-frequency-
division-multiplexing (OFDM) system with binary phase-shift keying (BPSK)
modulation on each subcarrier. CP-OFDM system includes a repetition code
an
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雷达测伪距 采用的正负调频法 matlab仿真源码 -The radar measured pseudorange positive and negative frequency modulation method matlab simulation source code
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编写了关于QPSK调制的matlab调制解调代码,其中做了滤波,加载频,加噪声,滤波,误码率性能分析等-Prepared a QPSK modulation modulation and demodulation matlab code, where do the filtering, load frequency, adding noise, filtering, error rate performance analysis
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