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SUB-CARRIER SUCCESSIVE APPROXIMATION MILLIMETER WAVE RADAR FOR HIGH-ACCURACY 3D IMAGING
SUB-CARRIER SUCCESSIVE APPROXIMATION MILLIMETER WAVE RADAR FOR HIGH-ACCURACY 3D IMAGING
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机译:用于高精度3D成像的副载波逐次逼近毫米波雷达
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摘要
A sub-carrier successive approximation (SCSA) radar having a sufficiently high accuracy to capture 3D images of concealed objects. The invention is phase-based, and directly measures round trip time by estimating the phase delay of the carrier. One of its advantages is that the carrier does not need to sweep across a wide frequency range, thereby relaxing RF front-end bandwidth and linearity requirements. SCSA radar accuracy is limited only by the extent of system noise, allowing very high accuracy to be achieved with a sufficient integration period. The SCSA radar can be readily implemented in CMOS, as well as other device technologies, and fabricated within one or more small integrated circuits.
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