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The sentences you've mentioned in your question all have a quite different meaning. Let me try to explain them one by one: Clearly, it is not true that all $2^n$ sequences of length $n$ have the same probability. This refers to the example of a sequence of binary i.i.d. random variables. If $p(1)\neq p(0)$ then it is clear that sequences with different ...


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A lot of radar systems are interested in measuring Doppler, one example of which is pulse Doppler (PD) radar. PD radars are capable of measuring both range and velocity (with ambiguities, but that’s a different topic). The basic idea behind a PD radar is to transmit many pulses of the same waveform and observe how the phase of a target return changes. To ...


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