頻率指配 的英文怎麼說
中文拼音 [bīnlǜzhǐpèi]
頻率指配
英文
frequency a ignment-
Jg davis et al : health effects of low - frequency electric and magnetic fields. oak ridge associated universities, 1992
目前沒有文獻指出，由家用電器、電視顯像終端和當地高壓電力輸配線所產生的極低頻率電磁場會危害健康。Several guidelines in choosing a suitable navigation algorithm are also provided based on the inertial sensors configuration and the turning frequency of the conventional algorithm
最後，提供了幾條根據慣性器件配置和傳統演算法的轉折頻率選擇合適導航演算法的指導原則。The precipitation frequencies is analysed according to 1956 ~ 2000 years of rainfall record series in baoding area. the features of distribution of rainfall are detailed evaluated. firstly, the distribution of monthly precipitation is not even. for instance. the annual rainfall amount is about 548mm in whole year, about 80 % of them in summer season. secondly, yearly variation of rainfall is greater. thirdly, the abundant years usually are followed by short years, but the important changes have taken place in the last decades. before 70 ' s the abundant years took the dominant position, from the 70 ' s to the middle of 80 ' s the short years took place more frequently than ever. after the later of 80 ' s, the short years hold the main position. the above knowledge is instructive for guiding the rainwater resources effective utilization
本文利用1956 2000年保定市的長系列降雨資料，對保定市降水量進行了頻率分析、年內變化分析和多年變化分析，明確了保定市降水量年內、年際間的變化情況：保定市降水量年內分配不均，汛期（ 6 - 9月）占年降水量的81 。保定市降水量年際間變化大，豐水年和枯水年交替發生， 70年代以前以豐水年段為主； 70年代到80年代前期降水量豐枯交替頻繁，總的接近於枯水年段； 80年代後期至今以枯水年段為主。這種降水分佈規律對農業生產雨水資源的高效利用具有重要的指導意義。The concept of " timing " in the article is not the clock in our ordinary living, but syntheses which is made up of some frequency source in the signal generator ( such as cs atom frequency standard, rb clock & high accuracy quartz crystal oscillator ) which produces the primary frequency, the matching input interface and the matching output interface and controlling circuit etc. for example, bits is a kind of timing equipment, which is used to control the timing of some functions
本文論及的「時鐘」概念不是指日常生活中使用的鐘表，而是由產生基準頻率的信號發生器（如銫原子頻率標準、銣鐘及高精度石英晶體振蕩器等）中的某種頻率源以及相配套的輸入、輸出介面和控制電路等組成的一整套具有特定同步定時功能的綜合體。如bits就是一種時鐘設備，它提供用在通信系統中控制某些功能的定時的時間基準設備，時鐘提供的信號稱為基準信號、定時信號或同步信號。After analyzing and comparing different partition rules, md32 pipeline architecture is finally defined, which meets the required instruction function, frequency and timing spec of md32. a complete set of creative design method for risc / dsp md32 micro - architecture is presented, such as parallel design, internal pipeline, central control, etc. thanks to the adoption of these design methodology, control path and data path are separated, circuit delay is reduced, and complex instruction operations are balanced among multiple pipeline stages
它們將若干復雜指令操作均勻分配在幾個流水節拍內完成，實現了任意窗口尋址等復雜指令操作，將整個處理器的數據通路與控制通路分離，減小了電路時延，從而滿足了risc dsp不同指令功能和系統時鐘頻率的要求，構成了統一的、緊密聯系的、協調的md32系統結構。Electrical parameter includes voltage, current, power, frequency, power factor, and so on. the adjustment system of electrical network needs many panel instruments that can show the electrical parameter, such as voltage, current, power, cycle etc. tjsually these instrument is not accurate, wastes manpower resource, and the management of the data is inconvenient and easy to mistake. recently the development of micro - electronics technology and the advent of slsi. especially the advent of singlechip, lead to a new revolution in the field of instrument
電工參數一般包括電壓、電流、功率、頻率、功率因數等。在電網調度自動化的設備中需要配置多隻測量顯示上述電工參數的鑲嵌式面板表，如電壓表、電流表、功率表等等，其一般均為指針式面板表，精度低，可視距離近，數據需要人工抄錄，浪費人力資源，數據管理不便，容易出錯。This paper firstly focused on and evaluated the pollination characteristics of c. praecox, in half - natural habitat of nanjing. we investigated flowering phenology, flowering patten, pollen viability, stigma receptibility, species of visitors, visiting rate of visitors and their foraging behavior. and we also investigated its breeding system, including pollen - ovule ratio ( p / 0 ), out - crossing index ( oci ), pollen grains deposited in stigmas, pollen germination rate and seed set rate with different treatments, from 2002 to 2004
試驗分別在2002 - 2003年和2003 - 2004年冬季進行，研究內容包括：花期物候觀察、花部形態觀察和統計、雌雄配子體功能測定、訪問昆蟲種類、訪問行為、訪花頻率和效率；同時對蠟梅繁育系統進行了檢測，檢測內容包括花粉胚珠比（ p / 0 ） 、雜交指數（ oci ）及不同處理花粉萌發率及結實率檢測等等，同時還進行了蠟梅與亮葉蠟梅傳粉過程比較。3. a raytrace model of both co - axis and non - axis beam propagations for high - power solid - state laser systems has been set up and simulations on shots have been conducted to get the spot distribution at target point. according to the requirement of system design and theory of mathematic statistics, the dispersion circle and frequency distribution, which optimize the stability allocation of optical components, have been presented
3 、建立了共軸與非共軸相結合的光線追跡模型，通過對大型固體激光裝置打靶的模擬模擬，獲取光束在靶點處的彈著點分佈，依據總體設計要求，運用數理統計原理，採用彌散圓和頻率分佈方法對彈著點分佈進行分析，優化光學元件穩定性分配指標。This article takes hanging off and wide fluctuation of transmition velocity of adsl as example, then analysis centers on the discerte multiple tone and the principle of channel load assignation. from analysis above article points out the root of adsl being sensible of noise signal. at last, reserches effects that window function and barrier effect on frequency and adopts fft to work out the noise power of adsl
本文以電信現在推出的adsl傳輸中鏈路經常掉線和傳輸速率經常大范圍波動為例，重點分析了adsl所使用的dmt調制方式和注水演算法分配通道載荷方式原理，由此指出adsl對噪聲信號敏感的根源，在得到問題的根源之後，分析了窗函數和柵欄效應對頻譜的影響，採用fft方法計算adsl線路的噪聲功率譜，為adsl線路測試提供了可靠的理論依據。Ofta s responsibilities include the assignment of radio frequencies, investigation into interference complaints, licensing private telecommunications services, prosecution of illegal use of telecommunications equipment, and coordination with frequency management authorities outside hong kong to prevent interference between radio services
工作范圍包括指配無線電頻率、調查無線電干擾投訴、簽發私人電訊服務牌照、就電訊器材的非法使用提出檢控，以及與香港以外地區的頻率管理機關進行協調，以防止無線電服務互相干擾。From wave equation, under small signal approximation, a theoretical calculation of shg efficiency and acceptances is presented. according to this, the acceptances of wavelength, period, temperature and incidence angle are calculated. these will guide the experiment and the fabrication of optical supperlattice ( osl )
2 、從波動方程出發，在小信號近似下，推導了qpm倍頻公式，分析了波矢失配的起因及影響，從理論上推導了波長，周期，溫度和入射角的接收帶寬，討論了占空比對輸出效率的影響，對介質制備及實驗有一定的指導意義。Comparing with conventional nyquist converters, - converters greatly release the requirements for high performance of analog circuit and precisely matched components. additionally, these converters exploit the enhanced speed, circuit density and low cost of modern vlsi technologies. currentlly, - adcs have been widely used for audio a / d conversion
- adc採用過采樣噪聲整形技術實現高精度模數轉換，和傳統的nyquist率模數轉換器相比，避免了對模擬電路性能指標和元器件匹配精度的較高要求，並可充分利用現代vlsi的高速、高集成度、低成本的優點，已成為音頻模數轉換的主要技術。Allotment of a frequency or channel
頻率或通道的指配This subject aim at designing a linear power amplifer whose output power is 40w for 225 - 450mhz band. but it seems not easy to finish the task because of this power amplifier own unique requirements including high output power, broad working frequency band, high linearity, and flat gain. due to the complexity involved, theoretically several soltuions are derived in the final scheme such as broadband matching technology, power - retreat, power synthesize, automatic power control and negative feedback. in addition, the design will be optimized by eda software and the final test result indicates that our design is successful
本課題的目標是研製一個輸出功率為40w的225 450mhz的線性功率放大器。由於該功放要求輸出功率大，工作頻帶寬，帶內增益波動小，線性度高，所以其終合設計難度大。鑒于這個原因，在理論設計上筆者採用了寬帶匹配、功率合成、功率回退、負反饋、自動功率控制等技術；在實踐中精心設計電路，並且配合eda軟體模擬，最終達到所要求的指標。This paper gives us too ways ： one is to adopt a better modulation mechanism, s - cdma, to bate noise jamming. the other way is to implement automatic frequency agility under strong noise, based on the ranging and burst configuration mechanism of current docsis protocol, meanwhile, guaranteeing cmts ' s normal operating. this paper comprehensively analyzes the anti - jamming mechanism of docsis, then presents the specific implementation of the latter method
如何降低噪聲對網路的危害，本論文指出了兩個方向，其中一個就是在調制體制上下工夫，採用s - cdma體制，通過改變調制方式來主動的抑制噪聲的影響；另一個方向就是基於現在協議提供的抗噪聲干擾的機制，充分挖掘測距機制和靈活的突發配置機制的抗干擾潛力，以不影響頭端設備的正常運行為前提，以它們為基礎實現能自動避開強噪聲干擾的頻率轉移。分享友人