Title :
Resolution analysis of adaptive line enhancers for detection of multiple sinusoids
Author :
Matsuura, Koji ; Watanabe, Eiji ; Nishihara, Akinori
Author_Institution :
Fac. of Eng., Tokyo Inst. of Technol., Japan
Abstract :
The frequency resolution of adaptive line enhancers (ALEs) to detect multiple sinusoids in noise is defined. It is then shown that detectability of multiple sinusoids is evaluated by the number of real roots of a high-order equation. For sinusoids with equal amplitude, a simpler method is proposed. Simulation results are presented to confirm the effectiveness of the proposed methods
Keywords :
adaptive filters; adaptive signal detection; filtering theory; frequency estimation; noise; notch filters; signal resolution; adaptive line enhancers; detectability evaluation; frequency resolution; high-order equation; multiple sinusoids detection; noise background; resolution analysis; Adaptive filters; Bandwidth; Electronic mail; Equations; Frequency estimation; Iterative algorithms; Line enhancers; Mean square error methods; Modeling; Systems engineering and theory;
Conference_Titel :
Circuits and Systems, 1998. IEEE APCCAS 1998. The 1998 IEEE Asia-Pacific Conference on
Conference_Location :
Chiangmai
Print_ISBN :
0-7803-5146-0
DOI :
10.1109/APCCAS.1998.743802
