Synchronous scattering point position identification method for double-station radar target property measurement

Abstract

The invention discloses a synchronous scattering point position identification method for double-station radar target property measurement. The synchronous scattering point position identification method comprises the following steps: establishing a three-dimensional rectangular coordinate system in a darkroom; determining the positions of a transmitting antenna and a receiving antenna in the three-dimensional rectangular coordinate system; using the positions of the transmitting antenna and the receiving antenna as focal points; respectively using the sum of the distance from the position of an object to be tested to the transmitting antenna and the distance from the position of the object to be tested to the receiving antenna in the testing area as the long axis length, and constructing an ellipsoid in the darkroom; obtaining the synchronous scattering points at the junctions between the ellipsoid and each side and the internal space of the darkroom. The method can be used for quickly finding the synchronous scattering point position where the sum of the distance from the transmitting antenna in the darkroom to the synchronous scattering point position and the distance from the synchronous scattering point position to the receiving antenna is equal to the sum of the distance from the transmitting antenna to a object to be tested and the distance from the object to be tested to the receiving antenna.

Description

technical field [0001] The invention relates to a method for identifying the position of a scattering point. More specifically, it relates to a method for identifying the location of scattering points synchronously during bistatic radar target characteristic measurement. Background technique [0002] With the development of stealth and anti-stealth technology, more and more scientific and technical personnel are concerned about the bistatic scattering characteristics of radar targets. Schematic diagram of indoor dual-station radar target characteristic measurement as shown in figure 1 As shown, the dual-station measurement means that the transmitting antenna and the receiving antenna are not in the same position, and have a certain dual-station angle relative to the target to be measured. The electromagnetic wave reaches the target to be measured, and the scattered electromagnetic wave of the target to be measured is received by the receiving antenna in another direction. ...

AI Technical Summary

Problems solved by technology

However, this processing method cannot eliminate the scattered signals that reach the receiving antenna at the same time as the scattered signals in the darkroom and the target to be measured. The sum of the distances is equal to the distance from the transmitting antenna to the target to be measured and the sum of the distances from the target to the receiving antenna, then these unwanted scattered signals will also fall into the rectangular box in Figure b and arrive at the same time as the signal of the target to be measured receiving antenna, it will be difficult to eliminate the

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