| 摘要 |
FIELD: radio engineering. ^ SUBSTANCE: inside total interval of time measurement group of time intervals following each other is formed, containing integer number of inlet signal periods, besides, duration of inner time interval T is identified under the condition ^ where äc - correlation interval; öf - efficient width of spectrum of additive mixture of periodical signal with narrowband noise. Reference frequency signal periods number is counted in each of formed intervals. Average value of inlet signal period is identified in total interval of measurement time. Then reverse value is calculated for relative mean square deviation in duration of inner time interval T, and values of signal/noise ratio are identified according to the following formula: ^ EFFECT: improved accuracy of signal/noise ratio measurement. ^ 3 dwg |
