摘要
针对水下测深训练要求,运用直接数字频率合成(Direct Digital Frequency Synthesis,DDS)技术,设计并研制1种用于陆上训练、无需换能器的测深仪回波信号源.实践证明,该方法能有效提高测深精度,增加模拟范围,有一定的实用性.
To solve the depth measurement training under water, based on the technology of the Direct Digital Frequency Synthesis （ of the generator, training on DDS） , an echo sounder＇ s target land without the transducer can signal generator is proposed. Making use be realized. Experiment shows that the measurement precision is improved,the range of simulation is extended, and it is practical.
出处
《上海海事大学学报》
北大核心
2009年第3期31-34,共4页
Journal of Shanghai Maritime University
基金
上海市重点学科建设项目(T0603)
关键词
直接数字频率合成
信号源
现场可编程门阵列
direct digital frequency synthesis
signal generator
field programmable gate array
