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Description: 直接序列扩频通信可以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。在接收端,原伪噪声序列和所收信号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。-direct sequence spread spectrum communication can be effective resistance from the channel narrowband interference. In a DSSS system. Spreading through the sequence of pseudo-noise (PN) to send the right message to data modulation to achieve. On the receiving end, the original pseudo-noise sequence and the received signal may be related Operational narrowband interference signal DS extended to the whole band, make tampering equivalent to a lesser extent than the flat spectrum of noise; Meanwhile, the DS signal disspreaded restore the original data.
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Size: 111616 |
Author: 赵艳朝 |
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Description: dsss fsk仿真
资料很好值得-dsss Simulation
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Size: 4096 |
Author: 李懿 |
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Description: 直扩系统中的多径干扰信号的估计消除技术，通过仿真标量多径对直达信号的鉴相特性的影响-DSSS system multipath interference estimate signal cancellation technology, through the simulation of scalar multi-path of the direct signal phase characteristics. .
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Size: 5120 |
Author: zhaopijie |
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Description: 实现扩频通信，包括了PN码同步，扩频调制解扩-Realize spread spectrum communication, including the PN code synchronization, spread spectrum modulation solution extender
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Size: 38912 |
Author: liukj |
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