Abstract:This paper describes the basic principles of DDS (Direct Digital Frequency Synthesis), and puts forward a hardware design of the mixer used in Electromagnetic Wave Resistivity Tool based on DDS chip. Psipce simulation shows that the system has good reliability and precision.
潘光玮, 冯泽东, 何源, 况丽丽, 赵国臣, 石峻峰. 基于直接数字合成技术的随钻电阻率测井仪器的设计与实现[J]. 物探与化探, 2012, 36(2): 253-255.
PAN Guang-wei, FENG Ze-dong, HE Yuan, KUANG Li-li, ZHAO Guo-chen, SHI Jun-feng. THE DESIGN AND REALIZATION OF THE LOGGING-WHILE-DRILLING RESISTIVITY TOOL BASED ON DIRECT DIGITAL FREQUENCY SYNTHESIS. Geophysical and Geochemical Exploration, 2012, 36(2): 253-255.