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This paper considers the coherent integration problem for a maneuvering target with jerk motion, involving range migration (RM) and Doppler frequency migration (DFM) within the coherent integration period. A fast non-searching method based on adjacent cross correlation function (ACCF) is proposed to realize the coherent accumulation, where two adjacent cross correlation operations are employed to...
This paper considers the range migration correction problem for realizing the coherent integration of a maneuvering target's energy, involving range walk and range curvature within the coherent integration period. A range migration correction algorithm based on the generalized keystone transform (GKT) is proposed, where two GKT operations and fold factor phase term compensation are employed to remove...
Ground moving target detection (GMTD) for squint synthetic aperture radar (SAR) is a more challenging task than that of the broadside SAR. The severe range and azimuth coupling induced by the squint mode combined with the unknown motion parameters makes the problem of indicating the moving targets more involved. In this paper, a novel ground moving target detection method for squint SAR is proposed...
We consider a moving target detection problem using distributed multiple-input multiple-out (MIMO) radar, where the Signal-to-Noise Ratios (SNRs) in each transmit-receive (T-R) channels are different. We propose two knowledge-based detectors based on the generalized likelihood ratio test (GLRT) rule, both of which require the knowledge of the SNRs relationship among T-R channels. Finally, we evaluate...
This paper mainly deals with target detection under heavy clutters in through-the-wall-radar imaging, and based on random sparse array, proposes an approach of multi-channel target cooperative detection with modified N-K detector applied to multiple single-channel images.
This paper mainly deals with the target detecting problem using polarimetric Multiple Input and Multiple Output (MIMO) radar with unknown covariance matrix. And the GLRT-based receiver is devised by resorting to the two-step design procedure. Specifically, the GLRT is devised with known covariance, and then, a suitable estimate of covariance is obtained using secondary data to plug into the derived...
Dynamic programming algorithm is an effective track before detect method. It recovers target trajectory at the same time as the detection is declared after processing several successive frames of measurement. This paper simulates the tracking accuracy of each frame of trajectory which is recovered from the maximum of merit function after executing dynamic programming. Several useful results for improving...
Three-dimensional imaging can provide more detail information of the target than two-dimensional image, which can be used to identify the target. Thus, it is very useful for detecting in enclosed structures or behind the obstacle. This paper mainly research on the three-dimensional through-the-wall human imaging and introduce an approximate method to calculate the propagation delay when electromagnetic...
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