high frequency channel 中文意思是什麼
high frequency channel
解釋
高頻通道-
The ionosphere is a complex medium, which is aeolotropy, asymmetry, dispersive and changes randomly with time. in order to improve the communication quality of the shortwave that depends on the ionosphere, we should have aknowledge of the current condition of the ionosphere in real time. the backscatter sounding of high frequency can diagnose the real - time channel characters for shortwave communication or hf radar, which is great assistant to shortwave communication and hf radar
電離層是隨機時變，各向異性，非均勻、色散的復雜介質。為了保證依賴于電離層進行的短波通信質量，必須了解電離層的實時狀態信息。高頻返回散射探測可以實時監測與短波通信或高頻天波雷達相關的天波傳播通道的狀態，對短波通信和天波雷達工作起了重要的輔助作用。 -
Shortwave channel is time varying transmission channel. it has dispersion in frequency and time domains. this characteristics hinds the data transmi - ssion at high speed and the correction of received data. in this dissertation i have analyzed the statistic characteristic of shortwa - ve channel, established the model of shortwave channel and simulated the rayl eigh fading distribution. the technology of spreading spetrum has been proved that it has the capability for anti - multipath and discerning multipath
在短波通信中，由於通道的時間色散和頻率色散，引起多徑展寬和多徑衰落，前者限制了數據的傳輸速率，後者造成短波數據通信中出現突發錯誤，為了解決多徑效應對短波通信的影響，本文所做工作如下：首先詳細分析了短波通道的統計特性，建立其數學模型；其次分析了擴頻通信的特點，從理論上證明擴頻技術不僅具有抗多徑干擾能力，而且具有分離多徑的能力；介紹了傳統的rake分集合併技術的特點。 -
The implementation of this system for more man ten years clearly shows that the multi - channel institution of retrial does not produce the desired effects. the present retrial system modelled itself mainly on that of the former soviet union, its operation in china gives rise to more state intervention than individual disposal, more layman recognised truth than truth recognised by law, seeking justice in substantial law more than legal procedure, and finally brings about " numerous applicants, unlimited lapse of time, high frequency, confused jurisdiction, unmethodical causes of action "
現行民訴法實施十多年的司法實踐表明發動再審程序主體的多元性並沒有產生預期的效果，由於現行的民事再審主要是參照前蘇聯模式，在再審程序的啟動上，強調國家干預權，忽視當事人處分權；在事實認定上，追求客觀真實，忽視法律真實；在糾錯上，注重實體公正，忽視程序公正；從而導致在實際操作中出現了啟動再審的「主體無限、時間無限、次數無限、審級無限、理由或條件無限」的不良現象。 -
In this thesis, for the merits of high frequency spectrum utility factor and high - speed data communication, the ofdm is introduced into the underwater acoustic communication. combined with fec to combat the frequency - selective fades and isi in the underwater acoustic channel, high speed data transmission is realized by employing ofdm technology
本研究嘗試將ofdm技術引入水聲通信領域，利用該技術頻譜利用率高，多載波并行傳送的特點，結合通道編碼，以克服水聲通道多徑干擾引起的頻率選擇性衰落和碼間干擾，獲得高速率數據傳輸。 -
After analyzing the noise in the high frequency carrier channel and computing the parameter of channel, we solved the kernel problems of coupling and matched impedance. separate designing the power, power amplification, port, transceiver and other circuits, we fitted together all circuits become the whole lonworks node circuit, and then triumphantly debugged it
經過對高頻載波通道的干擾特性分析和線路參數的計算，解決了耦合和阻抗匹配等核心問題，並對電源、功放、介面、收發器等部分電路分別設計，最後形成了完整的lonworks節點硬體電路，並調試成功。 -
Design and application of double - channel high frequency elctromagnetic vibrating screen
電磁高頻振動細篩在酒鋼選礦廠的試驗研究 -
Working principle : using the low - voltage high - frequency current rtansform from high - tech molectron, conbne traditional energy - channel theory from china, it gets through the energy - channel of body in a breath stimulate bicelectricity of body for therapy, have efficacy of through but indolence it ` s able to adjust metaboilsm, eliminate subhealth, reforning bone, skin etc, fast supply energy for body, at the same time, you can got beauty, health and happiness
工作原理：採用通過尖端電子集成技術轉化的低壓高頻電流，結合中國傳統的經絡理論，瞬間打通人體經絡，激發人體生物進行治療，以達到「通而不痛」的功效，調整代謝，調動潛在的生命能量，消除亞健康，重整經，骨，皮等器官，快速補充人體生命能量，通經活洛，平衡陰陽，增強體內含氧量，調理臟腑，同時美膚修身，以達到身心健康，美好，快樂的境界！ -
A large amount of experience data accumulated through long term operation is introduced. combined with the definition of relative requirements, the choosing and definition of operation index of high - frequency channels specially used for protection of hubei electric power network are discussed and elaborated through calculation and analysis such as input impedance and channel impedance of transmitter, sensitive voltage of received signal, redundancy of received signal, warning of channel redundancy and warning of channel faults etc
引用了長期運行中積累的大量經驗數據，通過計算分析，結合有關規程規定，探討和闡述了湖北電網繼電保護專用高頻通道諸如收信機輸入阻抗及通道阻抗、收信靈敏電平、收信裕度、通道裕度告警、通道異常告警等運行指標的選取和確定。 -
High - frequency protected channel testing instrument ( hfpcfi ) is a kind of facility used to test the failure of electric circuitry
高頻保護通道測試儀是一種用於測試電力線故障信息並實現電路主保護的測試儀器。 -
Using the new tri - coaxial - cable as connecting cable in high frequency protection channel to improve the anti - jamming ability of high frequency protection was suggested
提出了用新型三同軸電纜作高頻通道連接電纜可提高高頻保護抗干擾能力的建議。 -
Inner high frequency lens, support over 100 television channel, completely record by itself. the quality of the recording reaches dvd effect
內置高頻頭，支援100多個電視節目頻道，完全獨立錄影，錄影質量達到dvd的效果。 -
The main works are as follows : firstly, we compare image enhancement in wavelet domain with that based on unsharp masking and indicate that there is intrinsic relation between them, namely they both enhance images by enhancing the high frequency coefficients. because after an image is decomposed in wavelet domain, every high frequency can be enhanced. however, if unshrap masking is used, only one high frequency channel is enhanced
本文主要研究了基於小波多分辨分析的圖像去噪和增強，主要工作如下： 1將反銳化掩模與基於小波多分辨分析的圖像增強進行了對比分析，指出它們之間存在著內在的聯系，即兩者都是對與圖像邊緣細節對應的高頻實行增強，而且指出前者只不過是後者的一個特例，因為小波分解后，多級尺度多個高頻通道可得到增，而反銳化掩模僅增強了一個高頻通道。 -
I designed both hardware and software to develop the multi - channel analyzer, of which the key is the pc / 104 embedded computer. in a word, it has five traits as follows : ( 1 ) the key of apparatus is the pc / 104 embedded computer ; ( 2 ) on the hardware, we introduce the high - speed a / d conversion component - max191 to improve the mca ' s conversion speed and meet the demand on the spot ; ( 3 ) adopting high frequency module of electrical source to reduce its volume. ( 4 ) the mca consumes low power no more than 3. 9 watt
以國土資源部項目為依託，以pc 104嵌入式微機為平臺，完成了小型、低功耗能譜採集系統，特點是： （ 1 ）以pc 104嵌入式微機為平臺，實現了採集系統微機化； （ 2 ）採用高速低功耗a d器件maxl91 ，與現有的mca相比，提高了轉換速度，降低了mca的功耗； （ 3 ）採用高頻模塊電源，減小了採集系統的體積； （ 4 ）整機功耗低，小於3 . 9w ； （ 5 ）儀器重量輕。 -
Upstream channels cover in 5 65mhz, which is a part of the bandwidth of high frequency （ hf ） and very high frequency （ vhf ）. it is liable to incur noises ingress onto the band. since hfc system has the tree - and - branch topology between the fiber - node and subscriber units, subscriber units belonging to one fiber - node share the same upstream channel, forming the " noise funneling " effect
上行頻帶位於5 - 65mhz之間，這一頻帶為高頻（ hf ）和甚高頻（ vhf ）的一部分，此頻帶易受噪聲干擾；此外，由於從光節點到用戶端為樹型分支結構，同一光節點的多個用戶共享同一通道，形成了漏斗效應。 -
" ri chen " fa shao grade tone frequency channel wire put to use nooxygen - copper to do wire, 75 same axises structure, physics send out of spongy pe insulator high density, much more tieas weaving to protect, enter pvc outcover, pure copper an nomagnetic gold - plating plug it ' s high grade cd, dvd tv tone frequency signal for a special wire, the effect is very good for family - film
日辰發燒級音頻線採用無氧銅導體， 75歐同軸結構設計，物理發泡pe絕緣層、高密度、多層編織屏蔽保護，進口pvc外被，純銅無磁性鍍金插頭，是高級cd 、 dvd機音頻信號輸出專用線，配合使用高保真家庭影院系統效果更為明顯。 -
The 2503ah power analysis instruments come with preprogrammed configurations for electronic ballast testing, several 3 phase and motor test configurations. you may configure the 2503ah - 3ch as 3 independent power analyzers, or as the most advanced 3 phase analyzer. for electronic ballast testing, one channel may be set up to measure line input dais, while the other two channels measure the high frequency signals
Xitron儀器已為電子鎮流器測試制訂速度與準確度的新標準，高速fft處理器能將鎮流器測試時間縮減可高達75 % ，測試參數包括效率，功率因素，失真及個別的諧波內容， 2503ah系列可完全支援iec - 555符合測試，亦為先進的測試實驗室，測試系統製造商及全球三大照明產品製造商所廣泛採用 -
It can realize the circuitry ' s primary protection as well. by using it ' s high - frequency transmitter together with respective peripheral process equipments, programmable testing signals are added to the transmission channel
該裝置通過高頻發訊機與相應外圍加工設備合成並傳送發端測試信號，于收訊機端接收此信號並分析傳輸通道故障信息。 -
The experience results indicated the reliability of this kind of thermostatic control system. the analysis and compare about modern dielectric loss measuring methods are presented on chapter 3, and the zero - crossing testing phase discrimination method is adapted as the measuring method of this measuring system. furthermore, applied high frequency pulse technique, channel self - correction technique, anti - harmonic technique are used to increase accuracy and reliability of measurement
本文對現代介質損耗測量技術進行了分析與比較，採用過零鑒相比較法作為介質損耗測量方法，並結合外施高頻脈沖技術、通道自校正技術、抗諧波技術，設計了高精度介質損耗測量電路，有效提高了介質損耗測量的精度，減小了測量誤差。 -
The telemetry delays for each tool have been standardization as channel alphabetical letters. so the telemetry gauge and interface circuit of tools are designed in this paper. the temperature data of the new kind of telemetry tools has special format consisting of an 8 bit digital temperature wore over an 8 frame time period for its high frequency and the data of flowmeter is uplinked on two time dot to determine downhole or uphole rotational direction
本文重新設計了新型遙傳短節和參數測量儀器的介面電路，部分參數的介面電路完全採用硬體電路實現；針對溫度參數的數據頻率高於新型遙傳方式可傳輸頻率范圍的矛盾，提出了按「位」傳輸的新方式；基於流量參數特有的方向性，對流量數據採用了兩道傳輸的方式。 -
A switch ic for analog signal processing is designed and implemented, which can fulfill the functions of sampling, weighting, controlling and summing of high frequency analog signals. the circuit consists of three parts : four channel analog switches, a voltage reference and the control circuitry. each analog switch is comprised of two high - transconductance n - mosfets with high w / l ratio, which realize the fine tuning and coarse tuning of the input signal respectively
本文研究並設計了一種可對高頻信號進行取樣、加權、控制、疊加的模擬信號處理丌關集成電路，它包括模擬開關、電壓基準源和移位寄存器三個功能模塊，通過兩個高寬長比的高跨導nmos晶體管實現權值的粗調和微調。
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