摘要
遥测信号源需要通用化。文章以现代计算机与信号处理技术为基础,设计具有通用性的遥测信号源,使其具有副载波频率可变(5kHz～512kHz,调节步长小于1Hz)、码速率可变(312.5bit/s～128kbit/s,调节步长小于1bit/s)、遥测帧格式可编程、帧同步码和码型可变(NRZ-L、NRZ-M、NRZ-S、SPL、SPM、SPS)等特点。
To satisfy the general-purpose requirement of telemetry signal source, the design is based on the current computer and signal process technologies, which support the sub-carrier frequency ranging from 5kHz to 512kHz, bit rate ranging from 312.5bps to 128kbps, programmable telemetry format, frame synchronization pattern and multiform PCM codes（NRZ-L, NRZ-M, NRZ-S, SPL, SPM, SPS）. Furthermore, the sub-carrier frequency can be tuned with 1Hz and bit rate with lbps as a step.
出处
《航天器工程》
2008年第3期67-70,共4页
Spacecraft Engineering
关键词
航天器
通用
遥测
信号源
DSP
DDS
spacecraft
general-purpose
telemetry
signal source
DSP
DDS
