论文信息 - Time-frequency rate distributions with complex-lag argument

Time-frequency rate distributions with complex-lag argument

A general form of the Nth order complex-lag time-frequency rate distribution is proposed. A few interesting special cases are considered and analysed. The proposed approach can arbitrarily reduce the spread factor. Hence, it provides a high concentration even for signals with fast varying instantaneous frequency rate.

Irena Orovic | Srdjan Stankovic

[1] P. O'Shea. A new technique for instantaneous frequency rate estimation , 2002, IEEE Signal Processing Letters.

[2] Srdjan Stankovic,et al. Introducing time-frequency distribution with a 'complex-time' argument , 1996 .

[3] Cornel Ioana,et al. Generalized Representation of Phase Derivatives for Regular Signals , 2007, IEEE Transactions on Signal Processing.

[4] Cornel Ioana,et al. Adaptive Algorithm for Chirp-Rate Estimation , 2009, EURASIP J. Adv. Signal Process..

[5] Christoph H. Gierull,et al. The influence of target acceleration on velocity estimation in dual-channel SAR-GMTI , 2006, IEEE Transactions on Geoscience and Remote Sensing.

[6] Rainer Herpers,et al. Velocity and acceleration estimation in video sequences by the local polynomial periodogram , 2003, Seventh International Symposium on Signal Processing and Its Applications, 2003. Proceedings..

[7] Igor Djurovic,et al. Performance of Instantaneous Frequency Rate Estimation Using High-Order Phase Function , 2010, IEEE Transactions on Signal Processing.

[8] Cornel Ioana,et al. Effects of Cauchy Integral Formula Discretization on the Precision of IF Estimation: Unified Approach to Complex-Lag Distribution and its Counterpart L-Form , 2009, IEEE Signal Processing Letters.