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- Maritime very high frequency band 海上甚高頻波段
- VHFJ? Very High Frequency Jammer? 甚高頻干擾台?
- At first utilized the SOT to normalize the multiwavelet coefficients in high frequency band and removed the signal-dependence of the speckle noise. 首先利用SOT對高頻子帶的多小波係數進行軟閾值去噪,濾除相干斑雜訊;
- For very high frequency clocks, a surface acoustic wave (SAW) oscillator is preferable. 對於非常高的頻率時鐘,用聲表面波振蕩器更好。
- At high frequency band,the frequency response error of a peak detector is the high frequency resonance error mainly produced by the distributive parameter. 峰值檢波器的頻響誤差在高頻段主要是由分佈參數產生的高頻諧振誤差。
- Submesoscale Coastal Ocean Flows Detected by Very High Frequency Radar and Autonomous Underwater Vehicles. 甚高頻雷達和自控潛水艇探測到的次中尺度沿岸海流。
- Abstract: At high frequency band,the frequency response error of a peak detector is the high frequency resonance error mainly produced by the distributive parameter. 文摘:峰值檢波器的頻響誤差在高頻段主要是由分佈參數產生的高頻諧振誤差。
- We need frequencies even hi gh er than thosewe call very high frequency. 我們所需要的頻率,甚至比我們稱作高頻率的頻率還要高。
- Elsewhere in the Pacific, very high frequency communications systems malfunctioned for half a minute. 太平洋上的其他地方,超高頻無線電通訊系統中斷了半分鐘。
- In VHF/UHF(Very High Frequency/Ultra High Frequency) ,the standard microstrip antennas of half-wave length are still very big . 在較低頻段(VHF/UHF),傳統的半波長微帶天線尺寸仍然太大。
- In the majority of cases, most of these partials are of very high frequencies. 在大多數情況下,大部分泛音的頻率非常高。
- QAM at a fixed point-to-point digital microwave systems in the wider application, it has a very high frequency spectrum utilization. QAM在固定的點對點數字微波系統中應用較廣泛,它具有很高的頻譜利用率。
- As an important component, VHF(Very High Frequency Radiotelephony) subsystem utilizes the speech communication to ensure the VTS system has its basic function. 作為VTS系統的一個重要組成部分的VHF(Very High Frequency Radiotelephony)通信子系統通過語音通信來保證VTS系統具備其基本的功能。
- One of the important development emphases is to explore the technology and application of the VHF(Very High Frequency) data chain on the basis of TDMA technology. 其中一項重要的發展重點是開發基於時分多址(TDMA)技術的VHF甚高頻數據鏈的技術和應用。
- For Very High Frequency/Ultra High Frequency(VHF/UHF) Ultra-WideBand Synthetic Aperture Radar (UWB SAR) the Radio Frequency Interference(RFI) may degrade the SAR image. 對工作於甚高頻/超高頻(VHF/UHF)波段的超寬頻合成孔徑雷達(UWB SAR),射頻干擾(RFI)會嚴重惡化圖像質量。
- With the single unwinder, the time for changing the paper or aluminum is the same, but this change should be done at high frequency because the substrata consumption is very high. 如果只配有一個開卷機,雖然換紙或鋁箔的時間是相同的,但是由於面層材料的消耗很大,所以更換的次數會非常頻繁。
- The results show that the dominant frequency componems of single deck blast vibration signals are concentrated at the higher frequency band(39 Hz-156Hz)and the ratio of the energy of low frequency components(less than 39 Hz) to the total energy is lower. 結果表明,在單段爆破中,爆破震動信號成分主要以中高頻(39Hz~156Hz)為主,低頻成分(39Hz以下)所佔比例極少。
- In this work, very high frequency ultrasound (140 to 1,300 MHz) was used to nondestructively characterize a set of chromium containing DLC coated coupons. 第一,高頻掃描聲聲顯微鏡被用來探測鍍層里表面以下的缺陷,並成功地生成出了小到1微米的缺陷的圖像。
- The very high frequency system placed transmitters in patrol cars to enable patrolmen to communicate with headquarters and other cars instead of just receiving calls. 的甚高頻系統發射機放置在巡邏車,使巡警溝通 與總部和其他車輛,而不只是接聽。
- Light is a wave composed of coupled electric and magnetic fields oscillating in synchrony at very high frequencies. 光是一種由電場與磁場耦合在一起進行高頻同步振蕩所形成的波。