Burst type navigation signal system and receiving method

A technology of navigation signal and receiving method, which is applied in the space field, can solve the problems such as no satellite navigation method can be found, and achieve the effects of reducing implementation difficulty, high reliability and low cost

Inactive Publication Date: 2011-08-03
ACAD OF OPTO ELECTRONICS CHINESE ACAD OF SCI
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Problems solved by technology

[0003] The design of the entire satellite navigation system is based on the starting point of the receiver continuously receiving satellite navigation signals, so most of the existing satellite navigation rec

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  • Burst type navigation signal system and receiving method
  • Burst type navigation signal system and receiving method

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Embodiment Construction

[0047] A kind of burst type navigation signal system and receiving method of the present invention, the concept of its burst signal navigation is:

[0048] The main sign of burst satellite navigation is that, from the perspective of the user terminal, the satellite navigation signal received by the burst satellite navigation terminal is "burst", or "pulse", which is the difference between burst satellite navigation and The hallmark difference of traditional continuous signal satellite navigation.

[0049] In the burst satellite navigation system, the burst satellite navigation signal seen from the receiving terminal can come from the following situations:

[0050] ●Burst navigation beacons broadcast by the direct navigation satellite itself;

[0051] ●The ground station of the forwarding satellite navigation system uplinks to the satellite and then forwards the burst satellite navigation beacon through the satellite;

[0052] ●When the enemy interferes intermittently with th...

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Abstract

The invention discloses a burst type navigation signal system and a receiving method, relating to the space technology. A signal broadcast carrier can be a navigation satellite, a space balloon or an airship and the like; a navigation signal of the burst type navigation signal system comes from a burst type satellite navigation beacon broadcasted by a straight hair type satellite navigation system or a forwarding type satellite navigation system through a satellite or an intermittent satellite navigation signal; a user terminal uses a high-gain antenna to carry out the time-sharing sky coverage in manners of pitching and azimuth 2-dimensional scanning; and a satellite within the direction scope of the high-gain antenna has the additional signal to interference ratio advantage endowed by the high-gain antenna, thereby the anti-interference effect is reached. With the utilization of the burst signal system and the receiving method, the problem of a large-area phased array antenna in the traditional airspace anti-interference measure is effectively avoided, and the time-frequency domain anti-interference measure is also convenient to carry out simultaneously; and the burst type navigation signal system is easily arranged on a smaller or high-mobility weapon platform and has low cost and high reliability.

Description

technical field [0001] The invention relates to the field of space technology, in particular to a burst navigation signal system and receiving method. Background technique [0002] The wide application of satellite navigation has given birth to the concept of "navigation confrontation". With the continuous upgrading of navigation countermeasure technology, various jamming methods to deal with satellite navigation receivers emerge in endlessly; from the perspective of jamming signal system, there are pulse jamming, decoy jamming, broadband noise suppressive jamming, broadband FM suppressive jamming, narrowband Jamming, etc.; from the carrier of the jammer, there are ground-mounted jammers, balloon-borne high-altitude jammers, and aircraft-borne jammers. As a means to deal with interference, various anti-jamming measures have also emerged. From the perspective of navigation receivers, there are anti-jamming technologies through various time-domain filters, anti-jamming techno...

Claims

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Application Information

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IPC IPC(8): G01S19/39
Inventor 宋华袁洪
Owner ACAD OF OPTO ELECTRONICS CHINESE ACAD OF SCI
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