Title :
Performance of spectral line detection using integrated trispectrum
Author :
Truong, Thanh ; Wickert, Mark A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Colorado Univ., Colorado Springs, CO, USA
Abstract :
The integrated trispectrum (IT) as an alternative to the delay and multiply (D&M) nonlinearity circuit is investigated. A spectral line detection/estimation scheme that employs the IT is developed. The conventional IT estimate utilizing the Fourier transform for relating a time signal to its frequency-domain representation is shown to be a major mathematical foundation for this analysis. The relation between the output power spectrum of the D&M circuit and the fourth moment spectrum of the input is established. The asymptotic performance for the detection probability is also analyzed. Simulation results provide the comparison between the IT approach and the standard D&M moment spectral method, and validate their theoretical performance bounds
Keywords :
Fourier transforms; Gaussian noise; frequency-domain analysis; parameter estimation; probability; radio receivers; signal detection; signal representation; spectral analysis; spread spectrum communication; D&M circuit; Fourier transform; Gaussian noise; asymptotic performance; delay and multiply nonlinearity circuit; delay and multiply receiver; detection probability; fourth moment spectrum; frequency-domain representation; integrated trispectrum; output power spectrum; simulation results; spectral line detection; spectral line estimation; spread-spectrum communications; standard D&M moment spectral method; theoretical performance bounds; time signal; Baseband; Circuits; Delay estimation; Gaussian noise; Performance analysis; Probability; Pulse modulation; Signal processing; Signal to noise ratio; Spread spectrum communication;
Conference_Titel :
Military Communications Conference, 1998. MILCOM 98. Proceedings., IEEE
Print_ISBN :
0-7803-4506-1
DOI :
10.1109/MILCOM.1998.722208
