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Radar system and method for determining range, relative velocity, and orientation of an object using continuous wave and chirp signals
Radar system and method for determining range, relative velocity, and orientation of an object using continuous wave and chirp signals
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机译:用于使用连续波和线性调频信号确定物体的距离,相对速度和方向的雷达系统和方法
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摘要
Determining distance and relative speed includes a transmitter transmitting electromagnetic signals defined by a plurality of sections, a first section comprising a continuous-wave (CW) signal, a second section comprising a chirp electromagnetic signal, the chirp electromagnetic signal comprising a plurality of subsections. A detector detects reflected signals being the transmitted electromagnetic signals reflected from an object, and comprising a reflected CW signal and a reflected chirp signal. The detector detects the reflected signals by: (i) generating a plurality of samples of the reflected CW signal, and (ii) generating a plurality of samples of the reflected chirp signal. A processor determines a first set of phase differences among the plurality of samples of the reflected CW signal and a second set of phase differences among the plurality of samples of the reflected chirp signal, and processes the first and second sets of phase differences to determine the distance, relative speed and bearing.
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