A presence detection algorithm based on the estimation of cyclic frequency for Phase Shift-Keying (PSK) signals in additive white Gaussian noise (AWGN) is proposed in this paper.
The minimum (frequency) shiftkeying (MSK) is a digital modulation with good performance.
最小频移键控（MSK）是一种性能较优的数字调制。
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A form of frequency modulation in which the carrier frequency is shifted between a mark frequency and a space frequency in response to the impressed intelligence signal (frequency-shiftkeying).