The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 24, 1987
Filed:
May. 11, 1984
Guy M Pelchat, Indianlantic, FL (US);
Robert W Boyd, Melbourne, FL (US);
Harris Corporation, Melbourne, FL (US);
Abstract
A scheme for monitoring the performance of a multiple access satellite communication network, particularly an antijam pseudo-noise spread code division multiple access network, operational in the presence of one or more up-link jammers having arbitrary waveforms, wherein the probability of error (or some directly related quantity) in the output data is considered to be the measure of link quality. Measurements on signal quality received over a selected (strong) link are performed at a prescribed (control) terminal. Such measurements include deriving a statistical mean and variance of decision voltages on a symbol-by-symbol basis. The measured means and variances are processed to account for differences in the link parameters of any desired link and the link used for measurement. The means and variances for the desired link are further processed to give output error probability, accounting for any error correction decoding in use. The desired link may be one of the actual links in the network or another link whose parameters differ from the links of the network.