Single-frequency measurements using undersampling methods
By: Eng S. Chia
Publisher: Naval Postgraduate School; Available from National Technical Information Service
Published: 1998
Place of publication: Monterey, Calif; Springfield, Va
Language: eng
Number of pages: 87
Description: 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.
Notes: Thesis Advisor(s): Phillip E. Pace.

"March 1998."

Thesis (M.S. in Electrical Engineering) Naval Postgraduate School, March 1998.

Includes bibliographical references (p. 47-48).

"Approved for public release, distribution unlimited"--Cover.

Also available online.

Mode of access: World Wide Web.

System requirements: Adobe Acrobat reader.

Republic of Singapore Airforce author.

dk/dk cc:9116 7/1/98.