Accession Number:

AD0882195

Title:

Effect of Finite Sampling Rates on Smoothing the Output of a Square Law Detector with Narrow Band Input,

Descriptive Note:

Corporate Author:

NAVAL ORDNANCE LAB WHITE OAK MD

Personal Author(s):

• Pryor, C. Nicholas

Report Date:

1971-02-26

Pagination or Media Count:

53.0

Abstract:

Most modern spectral analysis systems time-share a single narrow-band filter and detector among a large number of frequency channels and thus provide sampled rather than continuous data to output averaging devices. For practical filter designs and finite sampling rates, a loss in performance is experienced due to this sampling. Analytical means are developed for computing this loss, and the loss is evaluated for a number of common filter shapes. Losses of 1 to 2 dB are shown to occur when th detector is sampled at rates comparable to the detector bandwidth. Author

Descriptors:

• *INFORMATION THEORY
• SPECTRUM ANALYZERS
• INTEGRAL TRANSFORMS
• FOURIER ANALYSIS
• BANDPASS FILTERS
• CORRELATION TECHNIQUES
• STATISTICAL FUNCTIONS
• NARROWBAND
• SAMPLING
• POWER SPECTRA

Subject Categories:

• Cybernetics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE