【摘要】 提出在相位式激光测距系统中以FPGA代替专用DDS芯片作为信号源的方法,并对在FPGA中实现DDS功能及其外围硬件实现作了具体阐述,最后系统验证信噪比可达60 dB以上。它比传统的相位测距拥有更好的信号源、频率转换率、以及更低的功耗和更小的体积。更多还原

【Abstract】 A new signal generation method for phase laser ranging finder is proposed based on direct digital synthesizer technology of FPGA. We present the design of hardware and software of the system. The results of experiments proved that the SNR is more than 60dB. Compared with other technologies, it has higher stable frequency, frequency switch rate and lower power consume.更多还原