JPH0485276U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of this invention, and FIG. 2 is a block diagram showing a conventional target detection device. In the figure, 1 is a transmitting/receiving antenna, 2 is a transmitter, 3 is a transmitting/receiving switching circuit, 4 is a receiver, 5 is a display, 6 is an A/D conversion circuit, 7 is a video integration circuit,
8 is a threshold signal generation circuit, 9 is a threshold signal switching circuit, 10 is a target detection circuit, 11
is a memory, 12 is a compass control circuit, 13a, 13
b is an S/D conversion circuit, 14 is a beam electronic scanning control section, 15 is a beam elevation angle calculation process, 16 is a coordinate conversion circuit, 17 is a memory control section, and 18 is a processor. In addition, in the figure, the same reference numerals are the same,
or a corresponding portion.

Claims (1)

[Scope of utility model registration request] In a target detection device that searches and detects targets using radar signals, there is a transmitting/receiving antenna that transmits transmitted radio waves or receives received radio waves, a transmitter that generates high-frequency power pulses, and a transmit/receive switch that switches between high-frequency power pulses and received waves. A circuit, a receiver that detects waves received from the antenna, and A that converts the video signal from the receiver into a digital signal.
a video integration circuit that integrates the video signal from the /D conversion circuit; a threshold signal generation circuit that generates several types of threshold signals for target detection that change depending on the magnitude of the video signal from the video integration circuit; A threshold signal switching circuit selects one threshold signal from several types of threshold signals from the threshold signal generation circuit, and a threshold signal from the threshold signal switching circuit is compared with the video signal from the video integration circuit. A target detection circuit that detects a target, a compass control circuit that drives a transmitting/receiving antenna, and an azimuth angle synchronization signal and an elevation angle synchronization signal in a bow reference deck plane polar coordinate system from the above-mentioned compass control circuit are converted into digital signals. an S/D conversion circuit for converting, a beam electronic scanning control unit for controlling beam electronic scanning in the elevation angle direction, and a beam elevation angle calculation process for obtaining a beam elevation angle synchronized with the beam electronic scanning in the elevation angle direction; a coordinate conversion circuit that converts the azimuth angle signal from the S/D conversion circuit and the beam elevation angle signal from the beam elevation angle calculation processing into the azimuth angle and elevation angle of the north reference horizontal plane polar coordinate system; a memory control unit that stores the target signal from the target detection circuit in a memory location corresponding to the target position based on the azimuth and elevation angle; a memory that stores the target signal; and a memory that stores the target signal in terms of distance and azimuth. What is claimed is: 1. A target detection device that detects a target using a two-dimensional display and a processor that reads the contents of a memory that stores a target signal.