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SYSTEM AND METHOD FOR MULTI-CORRELATION WITH MODULATION-ADAPTED FILTER FOR THE FAST ACQUISITION AND THE TRACKING OF A RADIO NAVIGATION SIGNAL IN THE PRESENCE OF JAMMING
SYSTEM AND METHOD FOR MULTI-CORRELATION WITH MODULATION-ADAPTED FILTER FOR THE FAST ACQUISITION AND THE TRACKING OF A RADIO NAVIGATION SIGNAL IN THE PRESENCE OF JAMMING
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机译:在干扰作用下与调制自适应滤波器进行快速关联和无线电导航信号跟踪的多相关系统和方法
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摘要
A system for receiving a radionavigation signal, notably in a jammed medium, emitted by a satellite of a satellite positioning system, includes: at least one first multi-correlator and at least one second multi-correlator disposed in parallel and operating respectively at a frequency; filtering means, disposed upstream of said multi-correlators; a delay line, disposed on the branch, between the filtering means and the second multi-correlator; means for sub-sampling at the frequency adapted for sub-sampling the signal transmitted directly and by branching with delay by the filtering means; and demodulation means eliminating the Doppler effect, disposed between the sub-sampling means and the first and second multi-correlators.
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