FIELD: navigation, finding of direction of moving object in space. SUBSTANCE: direction finder uses antennas 1,2, selector switches 3,4,8,12,30,38,39, radio-frequency amplifier 5, frequency converter 6, multiplier units 9,19,20,23, counter 11, controlled oscillator 13, two-to-one frequency divider 14, code storage unit 15, clock pulse-generator 16, two phase control channels 17,18, phase shift unit 26, squarers 27,28, low-pass filters 31,32, oscillator control unit 33, standard oscillator 34, frequency multiplier 35, discrete phase shifter 36, frequency divider 37, control signal generator 40, computing unit 41, phase meter 42. EFFECT: improved design. 4 dwg
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DIRECTION FINDER | 1992 |
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Authors
Dates
1997-02-20—Published
1991-06-14—Filed