LINEAR FM CHIRP LASER
Assignee
Hughes Aircraft
Filed as: HUGHES AIRCRAFT COMPANY, A CORP OF DE
Filed
Mar 17, 1983
Granted
May 5, 1987
Location
El Segundo CA (Aerospace Corp/TRW)
Abstract
A laser radar system employing a linear FM chirp laser followed by post detection pulse compression by a surface acoustic wave (SAW) device. The heart of the invention is the FM chirp modulator that provides the needed tuning range and linearity for pulse compression. This modulation is accomplished by using a high pressure CO2 laser with an intracavity electric-optic modulator of CdTe. The frequency of the laser is controlled through the voltage applied to the crystal. With the performance the system offers, absolute radar ranges can be measured to 0.22 m and velocities to 0.37m/sec.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Nov 7, 1983
Rescinded
Nov 17, 1986
Duration
3 years
Inventor
- 1ROBERT L. DUVALL
Sensitive facility: El Segundo CA (Aerospace Corp/TRW)
Record Details
- Patent number
- US 4662741
- Application
- 06476288
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
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