Single-frequency measurements using undersampling methods
Chia, Eng S.
Pace, Phillip E.
Schleher, D. Curtis
MetadataShow full item record
The objective of this study is to verify the Symmetrical Number System (SNS) undersampling receiver architecture using software and to investigate implementation issues using digital signal processing (DSP) hardware. In the software design, a MATLAB program is written to determine a single sinusoidal input frequency using this receiver architecture. Each channel of the SNS undersampling receiver consists of a low speed ADC, a discrete Fourier transform followed by a constant threshold device to detect the signal's frequency bin. The detected frequency bins are then recombined in a SNS-to-decimal algorithm to recover the frequency of the signal. Error rate performance in a Gaussian noise environment at the input stage is evaluated. In the hardware design, a sinusoidal waveform is digitized, discrete Fourier transformed and converted from the SNS format to a decimal value using a single channel digital signal processor. Implementation difficulties and design issues are discussed
RightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
Showing items related by title, author, creator and subject.
The design and performance of a circuit to measure the tuning error of single-side-band radio receivers Jones, David Allan (Monterey, California. Naval Postgraduate School, 1972-09);In order to automatically tune a single-sideband (SSB) radio receiver to the carrier frequency of a voice-modulated, suppressed-carrier, single-sideband radio signal, the difference between the frequency of the suppressed ...
Spectrum receiver and signal selection unit designs for the Naval Postgraduate School SATCOM signal analyzer Ohlson, John Everett; Davidson, William E. (Monterey, California. Naval Postgraduate School, 1979-12); NPS62-79-017PRThe design and construction of a Signal Selection Unit and four Spectrum Receivers for use in the Naval Postgraduate School's SATCOM Signal Analyzer are presented. The purpose of the SATCOM Signal Analyzer is to provide ...
Detection and classification of low probability of intercept radar signals using parallel filter arrays and higher order statistics Taboada, Fernando L. (Monterey, California. Naval Postgraduate School, 2002-09);The term Low Probability of Intercept (LPI) is that property of an emitter that because of its low power, wide bandwidth, frequency variability, or other design attributes, makes it difficult to be detected or identified ...