Decomposition of time - variant modal by time - frequency filter 基于時頻濾波的時變模態(tài)分解方法
Method of insertion loss measurement for radio frequency filters 射頻濾波器插入損耗的測量方法。
Identification of nonlinear dynamic systems : time frequency filtering and skeleton curves 時頻濾波與骨架曲線
Ultra - high - frequency filter 特高頻濾波器
Super - gaussian sliding - frequency filters can be implemented with holographic fiber gratings 這種濾波器可以用全息光纖光柵制成。
Method of insertion - loss measurement for feed - through capacitors and radio - frequency filters 穿心電容器和射頻濾波器插入損耗的測量方法
Wave - carrier frequency filter , all kinds of sensors , high - frequency power - transfer transformers 載波頻率濾波器,各種感應(yīng)器和變壓器,傳感器以及高頻電源轉(zhuǎn)換用變壓器等。
Frequency - domain gtls identification combined with time - frequency filtering for flight flutter modal parameter identification 基于時頻域濾波及頻域廣義整體最小二乘辨識的飛機顫振模態(tài)參數(shù)辨識
Secondly , the same pulses are applied to selective frequency filters , and again the required results are obtained from their response 其次,通過對波進(jìn)行頻率過濾來獲得相同的脈沖波,從這些波的響應(yīng)中可得到需要的結(jié)論。
This approach the problem of conquers phase excursion and frequency drift that anciently adopts fixed frequency filter and its frame is simple 這種方法克服了以往采用固定頻率濾波器帶來的相移和頻率漂移問題,而且結(jié)構(gòu)簡單。