On-vehicle multiple-beam optical phased array laser three-dimensional imaging radar system
A laser three-dimensional imaging, optical phased array technology, applied in the field of radar engineering, can solve the problem of low imaging frame rate, achieve high imaging frame rate, improve detection distance, high resolution effect
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[0021] Specific implementation mode 1. Combination Figure 1 to Figure 4 To illustrate this embodiment, the airborne multi-beam optical phased array laser three-dimensional imaging radar system includes a multi-beam laser module 1, a transmitting module 2, a receiving module 3, a central processing unit 4 and a distance measurement unit 7, and the multi-beam laser module 1 includes beam splitter 1-1, phase modulator array 1-2, fiber amplifier array 1-3 and collimated beam expander array 1-4;
[0022] The emission module 2 includes a one-way glass array 2-1 and an optical phased-array (Optical Phased-Array, OPA) array 2-2;
[0023] The receiving module 3 includes an optical filter array 3-1, a doublet lens array 3-2, an area array APD array 3-3, a quenching circuit 3-4 and a distance measurement unit 3-5;
[0024] After receiving the "start" signal sent by the central processing unit (DSP C6678), the multi-beam laser module 1 controls the seed light source to emit a high-power...
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