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ICC
2007
IEEE
16 years 28 days ago
Digital Code Tracking Loops Over Frequency-Selective Fading Channels
Abstract— The performance of a noncoherent digital delaylock loop (DDLL) with a RAKE scheme for direct-sequence spread-spectrum code division multiple access (DS/SS-CDMA) signals...
Tsan-Ming Wu, Tsung-Hua Tsai
ISCAS
2007
IEEE
93views Hardware» more  ISCAS 2007»
16 years 26 days ago
Digital Wideband Excitation Technique for Impedance-Based Structural Health Monitoring Systems
—With ever increasing complexity in new mechanical structures, as well as aging structures in operation, locating damage with structural health monitoring techniques is becoming ...
Jina Kim, Benjamin L. Grisso, Dong S. Ha, Daniel J...
ISQED
2003
IEEE
71views Hardware» more  ISQED 2003»
15 years 12 months ago
Revisiting the Noise Figure Design Metric for Digital Communication Receiver
Noise figure is a commonly used system parameter that quantifies the degradation in the signal-to-noise ratio (SNR) as the signal passes through a receiving system. Because of the...
Won Namgoong, Jongrit Lerdworatawee
IFIP
1999
Springer
15 years 11 months ago
Design Error Diagnosis in Digital Circuits without Error Model
We describe a new method for design error diagnosis in digital circuits, that doesn’t use any error model. A diagnostic specific pre-analysis of the circuit extracts a subcircui...
Raimund Ubar, Dominique Borrione
ICC
1997
IEEE
113views Communications» more  ICC 1997»
15 years 10 months ago
Improved Performance QPSK Demodulator for Digital Satellite Radio
: Practical realizations of the optimum closed loop structure for coherent demodulation of QPSK signals demands the approximation of the hyperbolic tangent nonlinearity (Tanh) with...
Alexandre G. Melo, Henrique J. A. da Silva