SIGNAL MODULATION METHODS AND APPARATUS
Assignee
Filed
Nov 17, 1989
Granted
Jul 18, 1995
Location
WESTON MA US
Abstract
The disclosure relates to methods and apparatus for facilitating the accurate measurement of Doppler frequency shift induced on a one-way-propagated signal wave either by deliberate on-platform controlled actual or simulated motion of a receiving antenna means, or by relative motion between transmitting and receiving platforms, or by both. The methods and apparatus of this invention are directed to the suppression of identifiable components of a composite modulation process on a sinusoidal carrier, for the purpose of retaining, for separate detection, measurement or transmission, the result of any of the aforementioned frequency-shift inducing processes.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Nov 9, 1990
Rescinded
Jul 29, 1994
Duration
3 years, 8 months
Inventor
- 1ELIE J. BAGHDADY
Record Details
- Patent number
- US 5434577
- Application
- 07437898
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
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