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通常的数字信道化方法,由于信道不重叠,相邻信道之间存在盲区,当信号落入盲区时,会造成信号畸变甚至丢失。利用信道重叠技术可以有效地解决信道之间的盲区问题,但需要研究高效算法。文中根据一般数字信道化高效算法的数学推导思路,推导出通带重叠的数字信道化的高效算法,并建立了算法模型,从而解决了无盲区数字信道化的高效实现问题。利用Matlab建立仿真模型,仿真结果验证了模型的正确性。
The usual digital channelization method, because the channels do not overlap, there is a blind zone between adjacent channels, when the signal falls into the blind zone, it will cause signal distortion or even loss. The use of channel overlap techniques can effectively solve the problem of blind spots between channels, but the need to study efficient algorithms. In this paper, based on the mathematical derivation of general digital channelization efficient algorithm, an efficient digital channelization algorithm with passband overlap is deduced and an algorithm model is established to solve the problem of high efficiency digital channelization without blind area. The simulation model is established by Matlab, the simulation results verify the correctness of the model.