Adaptive angle tracking method based on digital phase-locked loop
A digital phase-locked loop and angle tracking technology, which is used in the reflection/re-radiation of radio waves, instruments, measuring devices, etc., and can solve problems such as slow convergence speed, divergent tracking performance at the end, poor convergence speed and angle tracking accuracy. , to achieve the effect of improving the convergence speed, small target angle tracking root mean square error, and excellent tracking performance
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[0035]It is easy to understand that according to the technical solution of the present invention, those skilled in the art can imagine various implementations of the digital phase-locked loop-based adaptive angle tracking method of the present invention without changing the essence of the present invention. Therefore, the following specific embodiments and drawings are only exemplary descriptions of the technical solution of the present invention, and should not be regarded as the entirety of the present invention or as a limitation or limitation on the technical solution of the present invention.
[0036] combine figure 1 , the present invention is based on the steps of the adaptive angle tracking method of the digital phase-locked loop as:
[0037] The first step is to obtain the narrowband echo data pointed by the current antenna front beam. The required narrow-band echo data is obtained by performing data processing such as digital down-conversion and decimation filtering...
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