RANDOM BINARY MODULATED SENSOR
Assignee
Filed
Jul 20, 1989
Granted
Aug 9, 1994
Location
LANHAM MD US
Abstract
A random binary modulated sensor transmits a continuous wave r.f. signal ulated by a binary random bit pair code signal which is transmitted by an antenna. A return signal reflected from a target is received by the antenna. A receiver mixer modulates the return signal with the r.f. signal and a delay circuit delays the binary random bit pair code. A coorelator receives the modulated return signal and delayed binary random bit pair code for producing a doppler output signal. A separate r.f. path in which a portion of the modulated r.f. signal is variably attenuated and variably phase shifted is present to cancel noise signals generated by antenna mismatch in transmission.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Oct 16, 1989
Rescinded
Dec 14, 1993
Duration
4 years, 2 months
Inventor
- 1DIETER R. LOHRMANN
Record Details
- Patent number
- US 5337052
- Application
- 07386794
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
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