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该发明提供一种用于测量远目标的距离和速度的装置.该装置采用低能量光辐射源发射内部和外部相同的、波长被扫描的辐射信号.产生波长扫描的方法是改变光辐射源的输入电压.外部测距系统采用包括偏振装置在内的共用光学装置,向远目标发射外部信号,并接收从目标反射回来的一部分信号.第一光频外差装置提供用于外部反射信号与从外部光辐射信号得到的本机振荡信号的混频,从而产生输出信号,并由提供的装置测定该输出信号的频率代表值.内部处理系统将内部信号射入已知长度的光学延迟装置,由第二光频外差装置接收延迟的内部信号,并将这个信号与从内部光辐射信号得到的本机振荡信号混频,由提供的装置测定第二光频外差装置的输出信号的频率代表值.另外一些装置提供用于测定内、外光辐射信号的中心频率.最后,处理器利用从外部测距系统和内部处理系统得到的频率代表值和中心频率值计算出目标的距离和速度.
The invention provides a device for measuring the distance and velocity of a far target using a source of low energy light radiation emitting the same internal and external radiation signals of a wavelength being scanned.The method of generating a wavelength scan is to change the Input voltage The external ranging system uses a common optics device including a polarizing device to transmit an external signal to a distant target and to receive a portion of the signal reflected from the target The first optical frequency heterodyne device provides a signal for externally reflected signals and from External light radiation signal obtained by mixing the local oscillator signal to produce an output signal, and provided by the device to measure the frequency of the output signal representative value. Internal processing system will be the internal signal into the known length of the optical delay device, from The second optical heterodyne device receives the delayed internal signal and mixes this signal with the local oscillation signal obtained from the internal optical radiation signal and the frequency of the output signal of the second optical heterodyne device is measured by the means provided Values. Other devices provide the center frequencies used to determine the internal and external optical radiation signals. Finally, the processor utilizes the signals from the external ranging system and Representative value of the frequency values and center frequency portion of the processing system calculates the distance obtained and the speed of a target.