Method of generating an RF signal modulated by a message signal

Details Method of generating an RF signal modulated by a message signal Method of generating an RF signal modulated by a message signal

1989-11-30

1990-12-11

Eisenzopf, Reinhard J.

Telecommunications

Carrier wave repeater or relay system

Monitoring

455 52, 455 63, 455 65, 455 67, H04B 1500

Patent

active

049776070

ABSTRACT:
For generating an RF signal modulated by a message and distorted by a predetermined fading profile for testing RF receivers, a sequence of digital phase and amplitude values which corresponds to the message modulation is arithmetically processed by a predetermined fading profile and stored in memory, and an RF carrier is amplitude and phase modulated by the stored values to produce a testing signal for the RF receivers.

REFERENCES:
patent: 4669091 (1987-05-01), Nossen
patent: 4679248 (1987-07-01), McKeown
patent: 4696017 (1987-09-01), Masheff et al.
patent: 4806881 (1989-02-01), Ives et al.
"A Multipath Fading Simulator for Mobile Radio", Arredondo, et al., IEEE Transactions on Vehicular Technology, 5/16/73.

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