JPH01105877U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the tracking status of the target tracking device according to this invention, FIG. 2 is an overall configuration diagram showing an embodiment of the target tracking device according to this invention, and FIG. 3 is an overall configuration diagram showing a conventional target tracking device. It is. In the figure, T is a target, G is a target tracking device, 1 is an electronic scanning antenna, 2 is a transceiver, 3 is a signal processor, 4 is a target memory, 5 is a target correlation processor, 6 is a target estimator, and 7 is a target A prediction error calculator, 8 a gain adjuster, 9 a beam scanning controller, 10 an automatic gain adjuster, 11 a radar reflection cross section calculator, and 12 a gain control generator. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Scope of utility model registration request] An electronic scanning antenna that emits an electromagnetic wave beam in any direction and receives reflected waves from a target; a transceiver connected to the electronic scanning antenna that transmits and receives electromagnetic waves; and a target reception signal received by the transceiver. a signal processor for processing target position signals and target Doppler signals; a target memory for storing a large number of target position signals and target Doppler signals obtained by the signal processor; and a large number of targets output from the target memory. a target correlation processor that inputs a position signal and a target Doppler signal and performs correlation processing between the targets to fix the target; a target position signal and a target Doppler signal of the fixed target obtained by the target correlation processor are smoothed; A target estimator for predicting, a target prediction error calculator for calculating the difference between the target position signal and the target predicted position signal from the target estimator, and controlling the level of the target video signal that is the output of the signal processor. a radar reflection cross section calculator that calculates the target radar reflection cross section by inputting the automatic gain control signal that is the output of the automatic gain adjuster, and the output of the target prediction error calculator. A gain control generator that controls the gain of the target estimator by inputting a target prediction error signal and a radar reflection cross section signal that is the output of the radar reflection cross section calculator, and a gain that is the output of the upper gain control generator. an estimator gain adjuster that adjusts the gain of the target estimator by inputting a control signal; and a beam provided to the electronic scanning antenna corresponding to the directivity angle of the electromagnetic wave beam directed toward the target based on the output of the target estimator. A target tracking device characterized by comprising a scanning controller.