The miss distance indicator is a Pulse Doppler Radar scalar MDI. The radar miss distance indicator uses the radio wave emitted by the target and the echo reflected from the missile to obtain the miss range when the target attacks the target, so as to provide the basis for the evaluation of shooting effect.
1 Application scenario
Missile and target missile design verification, identification and finalization, production approval and equipment training range test.
2 Product advantage
2.1 The system adopts the wide-beam gazing system, and the transceiver antenna of the radar directly covers the hemisphere-space, avoiding the switching of antenna beam, and ensuring the reliable detection and acceptance of the echo signal of high-speed attack targets in any direction. In all the live missions, the targets within the measurement range were successfully detected and recruited.
2.2 Pulsed Doppler radar system is adopted. Compared with continuous wave radar system, it requires less spacing between transceiver antennas, and there is no need to separate transmitting and receiving antennas by a relatively large distance. It can also easily achieve high transmitter-receiving isolation when installed on target aircraft or target missile platform with limited space. In addition, pulse Doppler radar has range resolution, which can suppress the influence of ground clutter and sea clutter.
2.3 Using advanced high-speed real-time signal processing architecture and target detection and tracking algorithm, the constant false alarm detection can be carried out on the high-speed moving target in the strong sea-ground clutter environment where the rendezvous time of missile and target (target missile) lasts only 1-2 seconds, and the range gate where it is located can be tracked in real time, from which the high-precision Doppler frequency history information of target echo can be extracted. Furthermore, the results of miss distance measurement are obtained.
2.4 High technology maturity and wide application. With the technology of the invention, four generations of Type 7 equipment have been developed successively, which have been used in the test identification and training of various missile development and equipment at various firing ranges.
3 Main technical indexes
3.1Measuring range of miss distance: a hemispherical space with a radius of 15m and the transceiver antenna as the center of the circle;
3.2 Measurement range of relative velocity of missile (missile) target (target aircraft, target projectile)：160m/s～700m/s；
3.3 Measurement Accuracy of miss distance：＜0.4m（1s）。
3.4 Target RCS：＞0.1m²；
3.5 Working system: pulse Doppler;
3.6 Operating frequency:：29XXMHz±100MHz；
3.7 Number of channels: one transmitting channel and one receiving channel；
3.8 Peak transmitting power:：20W；
3.9 Wired data transmission interface: RS422 (standard), network port (optional)；
3.10 Environmental compatibility meets GJB150A and electromagnetic compatibility meets GJB151A;
3.11 Volume
Host devices：120mm´120mm´80mm（excluding connector）；
Transceiver antenna unit：F50mm ´100mm；
3.12 Weight
Host devices：1.7kg；
Transceiver antenna unit：50g/个，共100g；
3.13 Power Supply：1.7A@12VDC（Power consumption is about 21W）。
4 Physical drawing
The device installation component is divided into two parts, namely the host and the transceiver antenna, as shown in Figure 1. The host can be structurally connected to the target equipment through four fixed holes in the base, as shown in Figure 2.
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| (a) Radar host |
(b) Transceiver antenna |
Figure 1 Radar host and transceiver antenna in kind
Figure 2 Schematic diagram of host installation and fixation
