Continuous-wave reflection transmissometer with target discrimin

Details Continuous-wave reflection transmissometer with target discrimin Continuous-wave reflection transmissometer with target discrimin

1993-04-19

1994-09-06

Rohm, Tod R.

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

Testing or calibrating of radar system

By monitoring

342 6, 342 26, G01S 710

Patent

active

053452437

ABSTRACT:
The attenuation of electromagnetic waves by a transmission medium is detected or measured by directing a continuous periodic electromagnetic wave toward a reflector. The reflector is modulated to modulate the electromagnetic wave as it is reflected. The reflected wave is received and an output signal related monotonically to the power of the modulated reflected wave is detected. The output signal is then compared to the output signal which is or would be obtained under various other transmission conditions.

REFERENCES:
patent: 4283725 (1981-08-01), Chisholm

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