Abstract:

The optimal waveform design based on SINR(Signal to Interference plus Noise Ratio) needs to search for the Lagrange multiplier which leads to a large amount of computation. To solve the problem, a method of maximum energy distribution based on SINR is presented. It distributes the discrete energy reasonably to maximize SINR of the echo. The optimal transmitted waveform of cognitive radar can be obtained with this method.The simulation results show that the achieved optimal cognitive radar waveform based on the SINR maximum energy distribution algorithm is close to the waveform based on the Lagrange multiplier algorithm and this method does not need to search for the multiplier. So the amount of computation can be reduced, the computation rate can be improved.

Key words: energy distribution, signal to interference plus noise ratio（SINR）, congnitve radar