SPACECRAFT ASTROORIENTATION SYSTEM Russian patent published in 1995 - IPC

FIELD: space technology engineering. SUBSTANCE: optical reflecting member 1 is made in the form of flat parallel plate and stars signals separation block 4 is additionally provided with five keys 12, 13, 14, 15, 16, two devices of sum control 17, 18, pulse generator 11, D-trigger 19, inverter 12, two OR/NO gates 24, 31, between two bifurcated star images space selector 26, two AND gates 34, 35, delay block 38 and signal diode limiter 39. In the case inputs of stars signals separation block 4 are connected with corresponding outputs of matrix photodetector block and outputs with inputs of switch 5. Output of first counter 9 is first input of stars signals separation block 4, output of second counter 10 is second input of stars signals separation block 4, delay block input is third input of the block. Devices of sum control 17 and 18 are made in the form of in series connected counter 40 and AND gate circuit 41, second input of which is connected with output of auxiliary operational device. In the case input of counter 40 is input of sum control device and output of AND gate circuit 41 is output of the block. EFFECT: increase accuracy of astroorientation due to proper identification of stars. 2 cl, 5 dwg