A spread spectrum signal acquisition method based on FFT was proposed in view of the existing methods with poor real-line performance and large hardware consumption.According to the principle of FFT
the acquisition scheme was designed and the characters were analyzed from PN code
FFT stockade effect and channel effect.The simulation result shows that the FFT acquisition algorithm can realize PN code acquisition in a low SNR of-10 dB
and has secrecy and anti-jamming capability.The method may be widely used to the fields of wireless positioning
remote measurement and control and satellite communications.
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references
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