JPH0378289U - - Google Patents

Description

[Brief explanation of the drawing]

Figure 1 is a configuration diagram showing an embodiment of this invention, Figure 2
The figure shows a detailed configuration diagram of the defruter circuit of this invention.
Figure 3 is a video signal waveform diagram expressed as an analog signal for visualizing the digital signal input to the defruer circuit, Figure 4 is a comparison circuit output waveform diagram compared with threshold 1, and Figure 5 is a diagram of the output waveform of threshold 2. FIG. 6 is an output waveform diagram similarly compared with threshold 3, and FIG. 7 is a configuration diagram of a conventional phased array radar device. In the figure 1...phased array antenna, 2
...Circulator, 3...Power amplification section, 4...
Exciter section, 5... Stabilizing oscillator section, 6... Local signal generation section, 7... Receiver section, 8... A/
D conversion section, 9... Signal processing section, 10... Target detection section, 11... Tracking processing section, 12... Display section, 13
...computer section, 14...BSC section, 15...defruter section, 16...defruter control section, 17...
Gate circuit section, 18... variable threshold section,
19...Defruer circuit input signal, 20...Comparison circuit, 21-24...Delay line, 25-2
8... Mismatch circuit, 29... Target detection section output signal, 30... Gate circuit section output signal. In addition,
Identical or corresponding parts in the figures are designated by the same reference numerals.

Claims (1)

[Scope of utility model registration request] In a phased array radar device that can freely scan the beam in the turning and elevation directions with the antenna fixed, and has the function of searching, detecting and tracking targets, and can do this for multiple targets. , a phased array radar antenna for both transmission and reception that radiates transmission radio waves to the outside and receives reflected waves from the target, and a circulator that isolates transmission and reception;
A power amplification section that outputs a high frequency power pulse, an exciter section that supplies a high frequency signal to the power amplification section, a stabilizing oscillator section that outputs a stable frequency, and a receiver that receives the signal from the stabilizing oscillator section. a local signal generation section that generates local signals used in an analog/digital converter section that converts a signal into a digital signal; a signal processing section that has a moving target display function, a pulse Doppler function, a pulse integration function, etc.; and a target that receives signals from the signal processing section and performs target detection. A detection section, a tracking processing section that receives signals from the target detection section and performs target tracking, a display section that displays the various processed videos mentioned above, and a display section that is connected to most of the functions from the signal processing section to the display section. a computer section that outputs a beam scanning command signal for the antenna, a defruter circuit section that is provided in parallel with the signal processing section and performs inter-human correlation processing of input signals, and an output of the defruter circuit section. After receiving the
A defruter control unit that controls defruter functions according to various radar modes, and a signal received from the defruter control unit to determine whether to make the output of the target detection unit invalid or to send it to the tracking processing unit as valid. What is claimed is: 1. A phased array radar device comprising: a gate circuit section that determines a signal level for inter-human correlation processing; and a variable threshold circuit section that determines a signal level for performing inter-human correlation processing.