发明名称 |
Digital electronic commutator for radio direction finding system |
摘要 |
An array of antennas is sequentially sampled by digital commutation means to provide a synchronous display of a synthesized antenna array pattern of reception on a cathode ray tube indicator. The commutation means and digital means for generating sine and cosine signals operate from a common oscillator source. Digital means are provided to advance or delay the phase relation of the pattern or of a strobe line with respect to the CRT sweep to effect rotation thereof into azimuthal alignment. Automatic bearing readout is digitally accomplished when alignment is achieved.
|
申请公布号 |
US4216476(A) |
申请公布日期 |
1980.08.05 |
申请号 |
US19700018023 |
申请日期 |
1970.02.26 |
申请人 |
U S OF AMERICA NAVY SECRETARY |
发明人 |
LORENZ, RICHARD;MARTIN, PAUL E |
分类号 |
G01S3/68;(IPC1-7):G01S3/20 |
主分类号 |
G01S3/68 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|