Receiver Anti-jamming Monitoring System and Method Based on Time Scale Monitoring and Carrier Phase
A carrier phase, monitoring system technology, applied in satellite radio beacon positioning systems, radio wave measurement systems, measurement devices and other directions to achieve high stability and continuity
Active Publication Date: 2017-08-15
ZHONGYU JIAHUA BEIJING TECH CO LTD
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[0004] The purpose of the present invention is to provide a receiver anti-jamming monitoring system and method based on time scale monitoring and carrier phase, to overcome the above-mentioned deficiencies in the current prior art
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[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention.
[0031] Such as figure 1 As shown, a receiver anti-interference monitoring method based on time scale monitoring and carrier phase according to an embodiment of the present invention includes:
[0032] Step 1: Monitor the signal of the satellite receiver to determine the output time scale signal and carrier signal;
[0033] Step 2: comparing the time-scale signal with the pre-acquired high-stable time base through a pre-configured time interval counter, and determining the time drift differen...
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The invention discloses a receiver anti-interference monitoring method based on time scale monitoring and carrier phase, which comprises the steps of a first step, monitoring the signal of a satellite receiver for determining an output time scale signal and a carrier signal; a second step, determining a time drift difference between the time scale signal and a local high-stability time base; a third step, establishing a time drift difference trend picture according to the time drift difference; a fourth step, measuring the phase value of the carrier signal according to a preset phase meter; and a fifth step, determining whether the satellite receiver is interfered according to the time drift difference trend picture and the phase value of the carrier signal. The receiver anti-interference monitoring method is beneficial in that high stability and high continuity of time are realized through the preset high-stability time base; furthermore an accurate determination for the interference condition of a jammer is realized through comparing the carrier phase with a time scale signal; and accurate determination for whether the satellite is deceived by the interference signal is obtained, thereby effectively determining authenticity and validity of the output result of the satellite receiver.
Description
technical field [0001] The invention relates to a receiver anti-interference monitoring system and method based on time scale monitoring and carrier phase. Background technique [0002] Generally, the anti-jamming design of satellite receivers is mainly two ways of anti-jamming antenna and GNSS / INS combination technology; the anti-jamming antenna has limitations on the strength and quantity of interference sources, and the cost is expensive; The drift characteristic of MEMS makes it easier to monitor the sudden jump of pseudo-range measurement and pseudo-range change rate. In other words, it is easy to monitor and discover the instantaneous jump of receiver basic measurement caused by external interference, but it is not sensitive to dynamic gradual interference. [0003] Aiming at the problems in the related technologies, no effective solution has been proposed yet. Contents of the invention [0004] The object of the present invention is to provide a receiver anti-inte...
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IPC IPC(8): G01S19/21G01S19/23
CPCG01S19/21G01S19/23
Inventor 王静波
Owner ZHONGYU JIAHUA BEIJING TECH CO LTD