【摘要】 提出了一种新的晶体振荡器自动稳频技术—闭环数字稳频法。该方法与以往的温度补偿法相比，更方便灵活，稳频精度更高，抗干扰能力更强，用该方法研制的１３５ＭＨｚ晶体振荡器在－４６～＋７５℃宽温度范围内频率稳定度达△ｆ／△ｆ＝±０．７８±１０￣（－６）．在团内外文献中尚未发现有优于这一指标的该类晶体报道。更多还原

【Abstract】 A new automatic frequency stabilization techneque ,digital close -looped .frequency control method,is presented.It performs over other temporature compensation techniques in stability,flexlbility and ability of acti-interference. A quartz crystal osdlator working at 135MHz is desiged with this technique.The oscillator can work within a wide temperature rangeof - 46～+75℃ and Obtain the frequency stability about △f/△f_s =-±0.78×,Noanalogical report has been found.更多还原