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The frequency-agile radar especially that adopts the pulse-to-pulse random frequency agility is the important anti-electronic countermeasure measure. However, nowadays when the frequency-agile radar operates in the state of pulse-to-pulse random frequency agility, only the incoherent signal processing are used as the coherence of echo phase has been destroyed. This paper mainly focused on coherent...
This paper proposes a new tracking algorithm for radar based on association probability of each observation to confront deceptive chaff. When deceptive chaff is released, conventional tracking algorithm such as nearest neighbour which keeps only a single hypothesis may lose efficacy once it chooses false target. Hence the possibility of every observation coming from real target is taken into account...
Through-wall-radar imaging (TWRI) has an ability to see the target behind the wall, which is desirable for antiterrorism, rescue and law enforcement. In order to obtain high resolution images, ultra wide band signal and large synthetic aperture should be used, which inevitably increases measuring time. The emerging compressive sensing (CS) technique can recover a sparse signal from incomplete measurements...
Millimeter wave imaging techniques for full body scanner is becoming increasingly important to detect concealed body-worn threats. A new configuration of full body scanner is designed in this paper. It utilizes human movement and standing linear array to form a planar synthetic aperture, which basically pertains to inverse synthetic aperture radar. Human movement is controlled by powerwalk, so the...
Electromagnetic waves penetrating through walls will experience refraction and velocity change which must be taken into account for accurate through-wall-radar imaging (TWRI). Calculation of actual slant range is critical for TWRI. However, the existing methods are complex and time-consuming; a close approximate method of slant range is presented in this paper which estimates the propagation distance...
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