JPH03114077U - - Google Patents

Description

[Brief explanation of drawings]

Figure 1 is a configuration diagram showing an embodiment of this invention, Figure 2
Figure 3 is a detailed configuration diagram of the receiver section of this invention, Figure 3 is a configuration diagram of the defruer circuit and switching circuit of this invention, and Figures 4A and 4B are time charts of two usage examples of this invention. , FIG. 5 is a block diagram of a conventional radar device. In the figure 1... Phased array antenna, 2
...Circulator, 3...Transmitter section, 4...S
TAL section, 5... L/O section, 6... Receiver section, 7
... Signal processing section, 8 ... Target detection section, 9 ... Tracking processing section, 10 ... Display section, 11 ... Computer section, 1
2... BSC section, 13... Defruter section, 14...
...Switching circuit section, 15...Gate circuit section, 16
...Receiver input signal, 17...MIX, 18...
FIL, 19, 23...IFAMP, 20...D
IV, 21, 34...DLY, 22...GAT,
24, 30...DET, 25...VIDAMP,
26...DIV output signal or defrouter input signal, 27...Receiver internal gate circuit input signal, 2
8... Receiver section output signal, 29, 36... DRV
, 31...A/D, 32...comparison circuit, 33...
Threshold circuit, 35... Mismatch circuit, 37
~41...Switchover switch, 42...Switching circuit output or gate circuit input, 43...Switching circuit control signal from computer, 44...A/D output signal, 45...Threshold signal, 46...
Comparison circuit output signal, 47... Mismatch circuit output signal, 48... Transmission pulse timing waveform, 49...
Timing waveform indicating effective reception range, 50...Output signal waveform, S1...Asynchronous interference wave, S2...
Target signal, S3... is a second echo. It should be noted that the same or equivalent parts in the figures are indicated 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 transmitter section that outputs high-frequency power pulses, a stabilizing oscillator section that outputs a stable frequency, and a local signal generating section that receives the signal from the stabilizing oscillator section and generates a local signal to be used in the receiver described later. , a receiver section that converts the input from the antenna into an intermediate frequency signal and then outputs it as a video signal; and a receiver section that receives the video signal from the receiver section;
A signal processing unit that includes an analog-to-digital converter that converts analog signals to digital signals, and has a moving target display function, a pulse Doppler function, a pulse integration function, etc., and performs target detection upon receiving signals from the signal processing unit. A target detection unit, a tracking processing unit that receives signals from the target detection unit and performs target tracking, a display unit that displays the various processed videos described above, and the signal processing unit is connected to most functions such as the display unit. a computer section that outputs a beam scanning command signal for the antenna; a defruter circuit section that performs inter-human correlation processing of the input signal distributed from the receiver section; and a switching circuit section that outputs the output signal and status signal to the receiver section and the gate circuit section described later according to a command from the computer section, and a switching circuit section that receives the signal from the switching circuit section and outputs the target detection section. 1. A phased array radar device comprising a gate circuit section that determines whether to make the signal invalid or to send it to the tracking processing section as valid.