Linear FM chirp laser

摘要: A laser radar system employing a linear FM chirp followed by post detection pulse compression surface acoustic wave (SAW) device. The includes an modulator that provides the needed tuning range and linearity for compression. This modulation is accomplished using high-pressure CO 2 with intracavity electro-optic of CdTe. frequency transmitter accurately controlled through application high linearity, frequency, sawtooth voltages to two plates CdTe crystal, voltage waveform applied one plate being out phase other crystal plate. With performance offers, absolute ranges can be measured 0.22 m velocities 0.37 m/sec.