FIELD: radar ranging.
SUBSTANCE: invention relates to monopulse radar and can be used in systems with amplitude summation-difference method of determining angular coordinates of targets. System of single-pulse radar with high accuracy of determining the target bearing angle consists of an antenna system, a receiving device having "total" and "difference" signals receiving channels, channels for transmission of "total" and "difference" signals connecting antenna system and receiving device, outputs of which are connected to inputs of level meters of "total" and "difference" signals, outputs of level meters are connected to inputs of computing device. System differs from the prototype in that the system includes a test signal generator whose on/off input is connected to one of the outputs of the computing device, and the output is connected to an additional test input of the antenna system. At that, the antenna system includes a permanent memory device configured to store the ratio of transmission ratios of the test signal from the test input of the antenna system to its "total" and "differential" outputs, as well as the test signal passing from the antenna system test signal input to the "total" and "difference" output signals of the antenna system outputs, wherein the output of the permanent storage device of the antenna system is connected to the input of the computing device. Computing device is configured to switch on/off the test signal generator, calculate the ratio of the test signal levels at the outputs of the "total" and "difference" signal level meters, determining the actual target bearing angle using the calculated ratio of the test signal levels at the outputs of the level meters and the value of the ratio of transmission coefficients of the test signal from the test input of the antenna system to its "total" and "difference" outputs, which is obtained from the permanent memory of the antenna system.
EFFECT: technical result consists in reduction of errors when determining target angle of bearing and reduction of requirements to accuracy of manufacture and stability of characteristics of channels of passage of "total" and "difference" signals.
1 cl, 2 dwg
