DID YOU KNOW? DTIC has over 3.5 million final reports on DoD funded research, development, test, and evaluation activities available to our registered users. Click
HERE to register or log in.
Accession Number:
AD0744085
Title:
Coherent Combining of Angle Modulated Signals Using Phase-Lock Loops.
Descriptive Note:
Interim technical rept. no. 7,
Corporate Author:
OHIO STATE UNIV COLUMBUS ELECTROSCIENCE LAB
Report Date:
1972-05-01
Pagination or Media Count:
182.0
Abstract:
The use of phase-lock loops to coherently combine angle modulated signals is investigated. emphasis is placed on determining the effect of receiver-generated noise on the performance 1 combiners in which pilot tone components of the received signals to be combined are phase-locked to a common CW reference signal and 2 combiners having a reference signal derived from the sum combiner output signal. When a combiner of the latter type is utilized, an arbitrary angle modulation technique can be employed. The effects of introducing hard limiters in the phase-lock loops on combiner performance are determined. Linearized combiners models are developed and conventional analysis techniques used to derive expressions relating appropriate combiner performance measures to signal and system parameters. Author
Distribution Statement:
APPROVED FOR PUBLIC RELEASE