HE Xue-hui, TAO Hai-hong, WU Zhao-ping, et al. An Improved Design for Non-Linear Frequency Modulation Signal[J]. Acta Electronica Sinica, 2009, 37(8): 1784-1788.
HE Xue-hui, TAO Hai-hong, WU Zhao-ping, et al. An Improved Design for Non-Linear Frequency Modulation Signal[J]. Acta Electronica Sinica, 2009, 37(8): 1784-1788.DOI:
An improved method for Non-Linear Frequency Modulation (NLFM) signal design is proposed based on window functions method.The minimum peak sidelobe suppression correlator of NLFM signal
based on window functions
is solved by convex optimization
and based on which a new NFLM signal is presented.its range sidelobe can be farther decreased by multi-iterative operations.Given the limited mainlobe width
a lower range sidelobe can be achieved with the presented method
and also
the presented algorithm can be suitable for the NLFM signal design with small time-frequency product.The proposed method has many advantages over the existing ones
such as design flexibility and quickly convergence.The validity of method is demonstrated by the simulation results.