SITE AND SYSTEM PHASE ERROR IN THE CRC HF SAMPLING ARRAY

Authors
  1. Montbriand, L.E.
Corporate Authors
Communications Research Centre, Ottawa ONT (CAN)
Abstract
The CRC HF sampling array is comprised of a number of parallel channels. Each channel consists of an antenna element, a coaxial cable, and a radio receiver. The receiver outputs are digitized for subsequent processing. The relative phase shift imposed on a signal in passing through each channel can be estimated using various calibration procedures. There still remains, however, in each receiving channel a residual error in the phase that seems to vary from receiver-to-receiver across the aperture of about 3-4 degrees when averaged over a large number of receiving channels, but peak errors can be as large as 10 to 15 degrees. For frequencies near 6 MHz this system/site error can lead to a bearing error of up to 0.2 degrees, when a subset of elements with an 84 m aperture (out of the 1943 m aperture) is used for the bearing determinations. TRUNCATED
Report Number
TN-710 —
Date of publication
15 Oct 1981
Number of Pages
18
DSTKIM No
82-01352
CANDIS No
35923
Format(s):
Hardcopy;Originator's fiche received by DSIS

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