A laser detector simulation method and device
A technology of laser detector and simulation method, which is applied in the direction of measuring device, optical device exploration, measuring instrument, etc., can solve the problems of difficult debugging and testing work, complicated operation, etc., so as to improve debugging and testing efficiency, easy to operate, and reduce usage effect of difficulty
Inactive Publication Date: 2017-01-18
SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
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[0003] Semi-active laser detection systems can be used in the fields of distance measurement, speed measurement, and target detection. However, in the development process of the detection system, it is necessary to debug and test the circuit and algorithm, which requires lasers, optical systems, turntables and other equipment. , factors such as atmospheric transmission must also be considered, and the operation is complicated, which brings great difficulties to debugging and testing
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[0028] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0029] Such as figure 1 As shown, after the host computer program starts, judge whether there are any parameters (including the laser power reaching the laser detector, the orientation of the target, and the frequency of the laser signal) to change, and if there are changes, write the new parameters into the serial port sending buffer. If there is no change, judge whether the send parameter button is pressed. If it is pressed, use the serial port to send the parameter to the analog generator. If it is not pressed, check whether the parameter has changed.
[0030] The host computer sets the laser power reaching the laser detector, the orientation of the target and the frequency of the laser signal according to the needs, and sends these information to the laser signal simulator through the serial port;
[0031] The laser detector analog signal...
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The invention relates to a four-quadrant laser detector and a signal simulating and extracting technology, in particular relates to a method and a device for simulating a laser detector, and can be applied in the field of simulation of laser detectors and the like. The method disclosed by the invention comprises the following steps: receiving data sent by an upper computer through a DSP, and carrying out 0-5V linear amplitude mapping of laser power reaching the detector according to data processing waveform characteristics; averagely dividing circumference angles and azimuth angles of a target into 128 parts, and then, forming a 128X128 two-dimensional DAC numerical table according to a pre-computed result; respectively searching two points closest to input information in the two-dimensional DAC numerical table according to azimuth information of the target; interpolating by utilizing a linear interpolation method so as to obtain output peak value data corresponding to position information of the target; and designing a first-order passive low-pass filter by taking the frequency of a laser signal as the frequency of an output square wave signal according to the junction capacitance of the laser detector and the input resistance of an amplifier, wherein response of the square wave signal through the filter is the output waveform of an analogue signal generator. According to the method and the device, the analogue signal generator of the laser detector is realized by utilizing a simulating technology; for the system of the laser detector, the debugging and testing efficiencies are improved; and the debugging and testing costs are reduced.
Description
technical field [0001] The invention relates to a four-quadrant laser detector and signal simulation extraction technology, in particular to a laser detector simulation method and device, which can be applied to the fields of laser detector simulation and the like. Background technique [0002] Analog signal generation technology is an important aspect of simulation technology. The analog signal generator developed by this technology can generate the same signal as the simulated signal according to the characteristics of the simulated signal, which can be used by the subsequent processing system. Analog signal generators can not only improve the efficiency of processing system debugging and testing, but also save the cost of debugging and testing processes, and are widely used in the field of signal processing. [0003] Semi-active laser detection systems can be used in the fields of distance measurement, speed measurement, and target detection. However, in the development ...
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IPC IPC(8): G01C15/00G01V8/10
CPCG01C25/00G01V13/00
Inventor 王恩德张心宇赵刚侯续奎尹虎承
Owner SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI