Range estimation for MIMO step-frequency radar with compressive sensing

The authors recently proposed a parameter estimation technique for multiple-input/multiple-output (MIMO) radar systems that employ compressive sensing (CS), and which applies to the case of slowly moving targets. This technique is based on the use of a step-frequency technique, and it allows angle, Doppler and range information to be estimated in a decoupled fashion. This decoupling significantly reduces the complexity of parameter estimation without a concurrent performance loss. The current paper considers the range-estimation performance of this method for the particular cases of linear and random step-frequency techniques. It is shown that the linear step-frequency technique requires less bandwidth than the random step-frequency technique in order to achieve the same performance.

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