AN ANALYSIS OF COMPLEX DOWN MIXING, FILTERING AND DECIMATION IN ACES

Authors
  1. April, E.
Corporate Authors
Defence Research Establishment Ottawa, Ottawa ONT (CAN)
Abstract
The report deals with the problems related to the use of an all-digital HF/VHF wideband receiver in a digital communication intercept system. The high output rates and large bandwidths associated with these receivers result in the need for a post-processing system which can reduce the sampling rate and isolate, in frequency, the bandwidth of interest. Therefore, a means of digitally filtering and mixing the signal to baseband is required. Additionally, a decimation process should be included in the system. General and detailed descriptions of the Mixing, Filtering and Decimation System (MFDS) are given. Simulations of the MFDS are also provided.
Report Number
DREO-TN-91-2 — Technical Note
Date of publication
15 Dec 1990
Number of Pages
34
DSTKIM No
91-03293
CANDIS No
70484
Format(s):
Hardcopy;Originator's fiche received by DSIS

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