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Radio detection ranging method and system based on quantization interval statistics

A technique for quantizing intervals and ranging methods, which is applied in the field of radio detection and can solve problems such as inability to perform blind ranging

Pending Publication Date: 2020-11-13
HUNAN NOVASKY ELECTRONICS TECH
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Problems solved by technology

[0005] The present invention provides a radio detection ranging method and system based on quantization interval statistics to solve the technical problem that the traditional ranging technology based on signal source radiation intensity detection and ranging technology cannot perform blind ranging

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  • Radio detection ranging method and system based on quantization interval statistics
  • Radio detection ranging method and system based on quantization interval statistics
  • Radio detection ranging method and system based on quantization interval statistics

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Embodiment Construction

[0035] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

[0036] see figure 1 , the ranging method of the radio detection based on quantization interval statistics of the present invention, comprises the following steps:

[0037] S1. Using a multi-channel receiver to detect signal amplitudes from signal sources of at least two receiving channels. It is also possible to obtain the source direction of each channel by detecting the angle, including the azimuth angle Pitch angle θ.

[0038] S2. Calculate the signal amplitude of each receiving channel into the sum of the calculated distance generated by the signal origin of the signal source and the distance error caused by noise.

[0039] Assuming that radio detection adopts multi-channel amplitude ratio method direction finding technology, figure 2 The ...

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Abstract

The invention discloses a radio detection ranging method and system based on quantization interval statistics. The method comprises the following steps of: detecting signal amplitudes, from an information source, of at least two receiving channels by adopting a multi-channel receiver; resolving the signal amplitude of each receiving channel into the sum of the calculated distance generated by theinformation source of the information source and the distance error caused by the noise; counting the noise coefficient of each receiving channel, resolving the noise coefficient into a distance error, and superposing the distance error on the original real distance to obtain the calculated distance of each receiving channel; and obtaining a quantization interval of dynamic distance measurement bycombining a normal distribution extreme value condition and a quantization interval formula. According to the invention, blind distance measurement can be carried out on the intensity of an unknown information source rapidly, and the method is also suitable for distance estimation of an adaptive information source with dynamically changing radiation.

Description

technical field [0001] The present invention relates to the field of radio detection, in particular to a radio detection ranging method and system based on quantization interval statistics. Background technique [0002] With the rapid development of radio detection technology, a single direction-finding technology no longer meets the needs of radio detection in wartime. Passive positioning technology has become a research hotspot in radio detection technology, and radio detection and ranging technology has become the key to positioning. [0003] Traditional radio detection usually uses the amplitude ratio method or the interferometric method for direction finding. In the real scene, the amplitude ratio direction finding technology has higher requirements for the consistency of multi-channel antennas, and the interferometric direction finding technology has higher requirements for the cross baseline length and multi-channel phase synchronization. Therefore, in terms of direct...

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Application Information

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IPC IPC(8): G01S11/02
CPCG01S11/02
Inventor 吴方来李征王生水韩乃军韩明华
Owner HUNAN NOVASKY ELECTRONICS TECH
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