Frequency modulation radio altimeter

Details Frequency modulation radio altimeter Frequency modulation radio altimeter

1985-06-19

1988-04-19

Tarcza, Thomas H.

Communications: directive radio wave systems and devices (e.g.,

Determining distance

Altimeter

342128, 342 85, G01S 1334

Patent

active

047393300

ABSTRACT:
A frequency modulation radio altimeter has a directional antenna which is connected to a transmission-reception switch controlled by a signal generator. The generator delivers periodic signals whose recurrence period is proportional to the delay time of the ground echo. The transmitter includes a radio frequency modulator modulated in frequency by a saw tooth signal whose recurrence period is proportional to the delay time of the ground echo. A homodyne receiver includes circuits for acquiring and tracking the ground echo signal, and supplies an output signal representative of the altitude and a control signal which is supplied to the inputs controlling the recurrence period of the transmission modulator and of the generator controlling the transmission-reception switch.

REFERENCES:
patent: 2726383 (1955-12-01), Dunn
patent: 2825056 (1958-02-01), Rust
patent: 3860925 (1975-01-01), Darboven, Jr.
patent: 4069482 (1978-01-01), Parker et al.
patent: 4126861 (1978-11-01), Witte et al.
patent: 4241346 (1980-12-01), Watson
patent: 4276549 (1981-06-01), Tomasi
patent: 4291309 (1981-09-01), Spiller et al.
patent: 4367473 (1983-01-01), Marin et al.
patent: 4503433 (1985-03-01), Tomasi
patent: 4567484 (1986-01-01), Schilz et al.
patent: 4620192 (1986-10-01), Collins

Affiliated with

Also associated with

Rating

Frequency modulation radio altimeter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Frequency modulation radio altimeter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Frequency modulation radio altimeter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2178770