Description: RAKE concept put forward in 1958 " a multipath channel communication technology by R.Price and PEGreen. Rake the Chinese meaning is: rake that Rick received equivalent with a rake " rake" multipath signal out, and then to be collected. Usually received multipath signal delay difference is small and is random, and the multipath signals superimposed generally difficult to isolate, and only the specific design of the signal can be separated, such a signal, i.e., the spread spectrum signal. Means of separation is a correlation receiver
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rake1.m
sigexpand.m
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