P code catching method and device
A technology of acquisition device and P code, applied in the field of satellite navigation, can solve the problems of large uncertainty range of P code phase, susceptible to interference, low acquisition sensitivity, etc., to ensure environmental adaptability, reduce false alarm probability, and redundant resources. Large margin effect
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[0032] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.
[0033] The steps shown in the flowcharts of the figures may be performed in a computer system, such as a set of computer-executable instructions. Also, although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.
[0034] figure 1 It is a schematic diagram of the composition and structure of the P code capture device of the present invention, such as figure 1 As shown, it includes at least a code clock generator, a carrier generator, a digital down converter, a fir...
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