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基于FPGA驱动微陀螺旋转的移相电路
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作者 李世鹏 张卫平 +2 位作者 刘凯 刘武 陈文元 《中国惯性技术学报》 EI CSCD 北大核心 2009年第6期738-741,共4页
传统的微陀螺转子驱动电路采用对模拟信号直接移相实现,为了解决模拟信号直接移相时移相范围有限、调试复杂等不足,设计出了基于FPGA的数字式驱动微陀螺旋转移相电路。通过FPGA产生相位差信号,经D/A转换电路和巴特沃兹滤波电路处理后输... 传统的微陀螺转子驱动电路采用对模拟信号直接移相实现,为了解决模拟信号直接移相时移相范围有限、调试复杂等不足,设计出了基于FPGA的数字式驱动微陀螺旋转移相电路。通过FPGA产生相位差信号,经D/A转换电路和巴特沃兹滤波电路处理后输出信号。该数字式移相方法产生的信号的相位差(0°~360°)、频率均可调,为涡流旋转微陀螺转子提供了理想的信号源。 展开更多
关键词 波形移相 涡流旋转转子 微陀螺 带通滤波 FPGA
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THE PHASE-OFFSET OVERLAPPED WAVE TECHNIQUE 被引量:3
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作者 Liang Dequn (Dalian Maritime University, Dalian 116026)Liang Weihua (Dalian University of Science and Technology, Dalian 116026)Sun Changnian (Telecom Sino Group, Sunnyvale, California, USA, 94086) 《Journal of Electronics(China)》 2003年第2期121-127,共7页
A new digital communication technology based on the Phase-Offset Overlapped Waves (POOW) has been introduced in this letter. The waves can be considered as a special multicarrier different from traditional ones. The s... A new digital communication technology based on the Phase-Offset Overlapped Waves (POOW) has been introduced in this letter. The waves can be considered as a special multicarrier different from traditional ones. The sub-waves in a coded word's period of the POOW are sine waves and have the same frequencies, but different starting phases. The most important characteristic is that these sub-waves are the piecewise functions and not orthogonal in a code word period. The decoding can be implemented by solving a linear equation group. This code has very high efficiency and thus the data transmission rate is increased greatly. 展开更多
关键词 Digital communications CODING MULTICARRIER Phase-offset overlapped wave
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