CAJ | 학술논문

基于双混频时差技术设计研制了8通道的频率稳定度测量系统,实现了对8路5 MHz或10 MHz频率标准的测量.当频率为10 MHz取样时间为1 s时,系统噪声本底优于2.0 X 10~(-13),取样时间为1000 s时,系统噪声本底优于2.5×10~(-16).不但可以满足原子时标基准原子钟组的内部比对,也可实现对一般频率标准的检定和校准.
기우쌍혼빈시차기술설계연제료8통도적빈솔은정도측량계통,실현료대8로5 MHz혹10 MHz빈솔표준적측량.당빈솔위10 MHz취양시간위1 s시,계통조성본저우우2.0 X 10~(-13),취양시간위1000 s시,계통조성본저우우2.5×10~(-16).불단가이만족원자시표기준원자종조적내부비대,야가실현대일반빈솔표준적검정화교준.
Based on the technique of Dual Mixer Time Difference (DMTD), an 8-channel frequency stabilitymeasurement system has been developed. It realized the measurement of 8-channel 5 MHz and 10 MHz frequencystandards. For 10 MHz frequency, the noise floor is better than 2.0 ×10~(-13)/1 s, 2.5× 10~(-16)/1000 s. It can not only satisfy the internal comparison of time scale ensemble, but also can realize the calibration of normal frequency standards.