Wireless communication carrier wave tracking method based on FFT assistant S-PLL
A carrier tracking and wireless communication technology, applied in carrier regulation, modulated carrier system, digital transmission system, etc., can solve problems such as difficulty in application, and achieve the effect of strong practicability, simple structure and low complexity
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[0060] The present invention will be further described below in conjunction with the drawings.
[0061] Such as Figure 1-4 As shown, a wireless communication carrier tracking method based on FFT-assisted S-PLL includes the following steps:
[0062] The first step: sender processing; the sequence of information to be sent After being coded and modulated, it is converted into an electromagnetic wave signal that can be sent through an antenna, which can be modeled as ; When the signal passes through the AWGN channel, there will be Gaussian white noise In addition, due to the relatively high-speed movement of the transmitting end and the receiving end, there will be a Doppler frequency deviation when the transmitted electromagnetic wave signal reaches the receiving end , Combined with existing research work, can be Modeled as an actual carrier frequency , Carrier moving speed , Acceleration Jerk and time The polynomial expression: namely:
[0063] among them , , Is the coe...
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