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- phase frequency spectrum 相位頻譜
- A filter whose transfer function is matched with the frequency spectrum function of input signal. 其傳遞函數與輸入信號的頻譜函數相匹配的一種濾波器。
- The Time Domain Wave Form and Frequency Spectrum of Modulated Signal of uexp( tt/ Pw) Multiply by Carrier with Uniform Phase Noise. 單邊遞減波電壓訊號乘上含有均勻相位雜訊載波之調變訊號時(shí)域波形及頻譜。
- The Time Domain Wave Form and Frequency Spectrum of Modulated Signal of Tria(tt/Pw) Multiply by Carrier with Normal Phase Noise. 三角波電壓訊號乘上含有準常態(tài)相位雜訊載波之調變訊號時(shí)域波形及頻譜。
- Alters the frequency spectrum of signals passing through it. 當通過(guò)它時(shí)能夠改變信號的頻譜。
- Frequency Spectrum Measurement of Noise of Image Intensifiers[J]. 引用該論文 錢(qián)蕓生;常本康;童默穎;劉磊.
- The inverted frequency spectrum,in fact, is Fouriers retransform. 倒頻譜是頻域信號的傅里葉再變換。
- Through the research of direct digital synthesizer (DDS) used as a divider in phase lock loop (PLL), a frequency synthesizer with small frequency resolution ratio and high purity frequency spectrum can be realized. 摘要通過(guò)對直接數字合成器在鎖相環(huán)路中作為分頻器應用的研究，使頻率合成器可以在實(shí)現超細頻率分辨率的同時(shí)達到高的頻譜純度。
- The Continuous Phase Frequency Shift Keying(CPFSK) signaling scheme has been widely used in mobile applications. 連續相位頻移鍵控(CPFSK)信號廣泛應用于便攜式移動(dòng)通信系統。
- A system that divides the frequency spectrum of a signal into a number of bands, which are separately transmitted and then recombined. 一種先將一個(gè)信號的頻譜分成幾個(gè)可獨立傳送的頻帶然后再合成的方法。
- In this paper, a simple method of plotting logarithmic phase frequency response curve for open-loop systems is advanced. 文章給出了繪制開(kāi)環(huán)系統對數相頻特性曲線(xiàn)的簡(jiǎn)便方法。
- The entire available frequency spectrum is used with 79 hops of 1Mhz bandwidth, analogous to the IEEE 802.11 standard. 以1Mhz帶寬79跳來(lái)利用這個(gè)完整的可用頻譜。這類(lèi)似于ieee 802.;11標準。
- Quantization noise analysis of linear phase frequency sampling FIR filters was discussed, and computation formula for measuring quantization noise was described in this paper. 主要分析了線(xiàn)性相位頻率采樣FIR濾波器中的量化噪聲,并給出計算公式。
- Peaking in the frequency spectrum due to repetition of signals by multiple reflection is not confined to water layers. 多次反射波引起的信號重復在頻譜中造成的峰值增多，并不僅僅局限于水層。
- Abstract: This paper describes a clock and data recovery（CDR）circuit for RFID tag, and a new phase frequency detector（PFD） is proposed for this CDR circuit for NRZ data. 文章摘要: 提出了一種適用于射頻電子標簽的時(shí)鐘數據恢復電路，在電路中提出了一種適用于NRZ數據的新型鑒頻鑒相器電路和自適應控制單元，能動(dòng)態(tài)調節邊沿檢測器中延遲單元的延遲時(shí)間，使此時(shí)鐘數據恢復電路具有大的鎖定范圍，且有結構簡(jiǎn)單易實(shí)現的特點(diǎn)。
- Each 1.5MHz frequency spectrum of DAB can transmit six sets of programmes with CD quality. DAB每1.;5兆赫的頻帶可供傳送六套CD音質(zhì)的節目。
- A low-cost, highly-accurate GPS carrier phase frequency syntonization system (GPS carrier phase-disciplined oscillator, GPSCDO) based on a single-frequency receiver is presented. 摘要:本論文介紹利用單頻接收機及GPS載波相位觀(guān)測量所組成一低成本且高精度的頻率同步系統（GPS載波相位訓練振蕩器）。
- The suggestions on the further research of the frequency spectrum analysis are provided. 就頻譜分析的進(jìn)一步研究提出了建議。
- Moreover, since the atoms are in random thermal motion the frequency spectrum will be altered by the Doppler effect. 而且，由于原子是在作無(wú)規則熱運動(dòng)，多普勒效應也會(huì )使頻譜發(fā)生改變。
- Dynamic data exchange ( DDE) techniqueFigures such as space spectrum, frequency spectrum, etc. （2）動(dòng)態(tài)數據交換（DDE）技術(shù)
