電波的干擾 的英文怎麼說
中文拼音 [diànbōdegānrǎo]
電波的干擾
英文
wave interference- 電 : Ⅰ名詞1 (有電荷存在和電荷變化的現象) electricity 2 (電報) telegram; cable Ⅱ動詞1 (觸電) give...
- 波 : Ⅰ名詞1 (波浪) wave 2 [物理學] (振動傳播的過程) wave 3 (意外變化) an unexpected turn of even...
- 的 : 4次方是 The fourth power of 2 is direction
- 干 : 干Ⅰ名詞1 (事物的主體或 重要部分) trunk; main part 2 (幹部的簡稱) short for cadre Ⅱ動詞1 (做...
- 擾 : Ⅰ動詞1 (擾亂; 攪擾) harass; trouble 2 (客套話 因受人款待而表示客氣) trespass on sb s hospital...
- 電波 : [電磁] radio wave; electric wave; hertzian wave
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Following the increasing capability of wind power, the distribution networks will be under disturbances by reason of the randomness and intermittence of the power resources
由於風能具有隨機性和間歇性的特點,隨著風電規模的不斷擴大,電網將持續受到風電場波動功率源的干擾。Some phenomena were observed when the hgcdte ( pc, pv ) detectors were irradiated by off - band cw co _ ( 2 ) laser which are much different from that when irradiated by in - band light. the irradiation of the off - band light can have a very strong disturbing effect on the detectors. a one - dimensional model is employed to do some work of qualitative and quantitative analysis for the experimental results
以波長為10 . 6 m的co _ 2激光為光源,進行hgcdte ( pc 、 pv )光電探測器的激光輻照實驗研究,發現探測器對于波段外輻照激光的響應與其對波段內輻照激光的響應大不相同,這種波段外激光的輻照足以對探測器造成很強的干擾。This paper mainly focuses on the noise limiting by means of the direct sequence spread spectrum ( dsss ) and the analysis of the transmission performance of the plc and some digital modulation technology. the contents of the paper is as follows : 1 ) the technical feasibility is proved after simulating noise limiting principle of dsss by means of systemview, the simulation software ; 2 ) a kind of band pass filter ( bpf ) is realized according to the requirement of filter and the principle of butterworth approximation, which satisfies the index of performance of dsss. 3 ) the low voltage plc system includes the sc1128, the specific modulation / demodulation ic, the bpf filter and other circuit components, furthermore, the control function of system is realized by means of the personal computer and the microcontroller
本課題在對低壓電力線的傳輸特性和數字調制技術進行分析的基礎上,將通信理論中的直接序列擴頻技術( dsss )用於解決低壓電力線通信的干擾問題,主要研究內容如下: ( 1 )用通信模擬軟體systemview對dsss技術的通信和抗干擾原理進行模擬分析,分別對時域和頻域下採用dsss技術前後接收信號的頻譜進行分析,驗證dsss技術在本系統中的可行性; ( 2 )由dsss技術對濾波系統的要求,根據濾波理論分析了巴特沃思型濾波器的逼近原理並設計了合適的濾波電路; ( 3 )用調制解調晶元sc1128和自行設計的濾波器加之輔助外圍電路,構造出低壓電力線載波通信系統,並採用atmel公司的單片機設計了接收和發射電路的微控制器; ( 4 )分別對採取抗干擾措施前後輸入和輸出信號進行對比實驗,並對結果進行分析,驗證了dsss技術對干擾信號的抑制作用。In hardware, we choose anti - disturbance photoelectric isolative sensor, take rc filter to resolve high - frequency for anti - disturbance. in software, we adopt arithmetic of recursion mean value to collective signal values to resolve low - frequency ac and pinnacle pulse disturbance
在硬體方面,選用抗干擾能力強的光電隔離電量傳感器,並採取rc濾波抗干擾措施解決中高頻干擾問題;在軟體方面,對採集到的信號量採取遞推平均值演算法,解決低頻交流和尖峰脈沖干擾問題。A real - time imaging tracking system overcomes the shortcomings of the ladar system which needs high cost, is easily disturbed by electromagnetic wave and ca n ' t be visualized. compared with the infrared, it is superior in the aspect of tracking cold - target
實時成像跟蹤系統克服了雷達成像系統費用昂貴,容易受外界電磁波的干擾,並且難于達到可視化的缺點,在跟蹤冷目標方面又較紅外優越。In addition, the anti - jamming circuit in power line and design schema in allusion to the jamming of plc channel are analysed. from the point of view of the system, these measures are testified effectively in pratice
另外,分析了低壓電力載波通道的干擾,研究了電力線上抗干擾電路及實施方案,從系統分析角度來看,措施是經濟而有效的。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。This paper presented a general systematic view, application and current development of the power line carrier transmission technology, and clearly compared some existing power line carrier communication chip with each other. then the authors analyze the channel " s characters of low voltage power line, and formed an abstract carrier channel model. using this as its basis, a new kind of transmission technology is designed that adopted transmission technology combining the spread spectrum modulation with channel coding, which can solve the problems above mentioned to a certain degree, and need not pay for high cost
文章不僅全面地介紹了電力線載波通訊技術的特點、應用及其發展狀況,還對目前的電力線載波通訊晶元進行了比較;並通過對低壓電網通道特性的分析和研究,抽象出其載波通道模型,在此基礎上,提出了將擴頻調制和通道編碼相結合的傳輸技術用於低壓電力線載波通信,這可以在很大程度上解決電力線的干擾問題,且不必付出高昂的代價。With frequency stabilizer and high frequency magnetic leakage suppressor, this device prevents leakage of electro magnetic radiation to avoid jamming other electrical instruments such as television, radio etc
置有高周波頻率穩定器和高周波漏磁壓制器,此裝置能免除電波的漏出以免干擾別的電子裝置,像電視機、收音機等。This kind of product applies to elevators 、 hospitals 、 an intersection 、 factories etc., avoiding any interference to the process of monitoring the image from any kind of furious electromagnetic signal and electric waves signal
本產品主要適用於電梯、醫院、路口、廠區等各種環境,防止監視視頻傳輸過程中受到各種強烈電磁信號及電波信號(如電機、馬達等大功率的瞬間啟動電流干擾等)對視頻信號的干擾。In this circuit, we use many kinds of negative feedback to modify the ou tput wave, which can decrease the distortion. and we use the high - voltage and high frequency capacitance efficiency, which can decrease the disturbance of output signal of variable frequency source for the test of part discharge
採用了多種負反饋迴路修正輸出波形,使得輸出電壓波形的失真度很小;並且在電路中有效利用高壓高頻電容,減小了變頻電源輸出的電壓對局部放電試驗時的干擾。The minimun stable speed is given when the disturbances of the friction and the wave are considered. consequently, the compensation methods are worked out
給出摩擦作用下的系統最低穩定速度限以及電機波動力矩作用下的系統速度誤差,由此定性得到了抑制摩擦和電機力矩波動干擾的措施。Compared with conventional methods, the proposed method is not disturbed by reflected waves from tee joints or other resistance discontinuities, and is not influenced by fault type, and can recognize the reflected wave from the fault point even when the fault point is near to the measuring terminal ( so - called dead - zone ), and simultaneously, the method reduces the influence of wave speed uncertainty
與傳統的行波測距方法相比,這種方法不受電纜分支接頭或其他阻抗不匹配點反射波的干擾,不受故障類型的影響,在近區也不存在無法識別反射波的問題,同時也減少了波速不確定性對測距精度的影響。Conductive coupling, inductance coupling, electromagnetic induction and grounding potential fluctuation etc, were regarded as disturbance sources of dcs
認為在安裝過程中,電導耦合、電感耦合、電磁感應及接地電位波動等均可成為dcs (集散控制系統)的干擾源。Wavelet transformation technology is applied to the small - current sensor, and the constructed pulse - respone function of the surface - acoustic - wave transducer is comsidered as a wavelet function, thus the surface - acoustic - wave type of element for wavelet - transformation and reconstruction is manufactured to filter the jamming signal of the small - current sensor effectively
把小波變換技術應用到小電流感測器中,構造的聲表面波換能器脈沖回應函數等於小波函數,從而製造出了聲表面波式小波變換及重構器件,該器件可有效濾除小電流感測器的干擾信號。It can generate high - stable and linear current signal and utilize butterworth low pass filter to eliminate the noise and ripple in the signal. according to the different functions of different pins, this circuit can modulate and control the output power of the laser diode and modulate the laser signal, which makes this laser diode driver have more valuable application. in the last part of the paper, the feasibility of the theory is validated by experiment data
其次,根據ic - wkn的內部電路和不同引腳的功能,設計了一套由d / a轉換器和單片機組成的信號調節電路,使之能夠輸出具有良好的穩定性和線性特性的電流調節信號,並選擇巴特沃茲低通濾波器來濾除信號中的紋波和干擾。Abstract : since piezoelectric resonant filter can not effectively prohibit higher - frequency harmonic, the mechanism of this problem has been discussed by means of a specific example which shows that there exists lots of undesirable resonant frequencies of piezoelectric that would let pass undesirable signals. to solve this problem , an ameliorated electrostatic mechanical resonant filter is proposed and a specific case is demonstrated. the example of electrostatic resonant micro - bridge asserts that by adjusting the gap of exciting capacitance the higher - frequency vibrating model of micro - bridge cannot be excited based on orthogonal character of intrinsic vibrating shape of micro - bridge, so that this kind of resonant filter can effectively filter out undesirable higher - frequency harmonic
文摘:提出壓電諧振濾波器不能很好地濾除高頻諧波的問題,結合一個具體例子理論推導了壓電諧振濾波器存在許多干擾諧振頻率,從而不能有效濾除一些特定頻率的干擾信號.為了解決這個問題,提出一種改進型的靜電激勵諧振濾波器.為了說明其可行性,具體分析了改進型雙端固支微梁靜電激勵諧振濾波器,理論推導證實基於雙端固支微梁的各階振型正交的原理,通過適當調整激振電容的間距,雙端固支微梁的高階振動模態受到很好的抑制,因此這種諧振濾波器可以有效阻止濾波器中心頻率的高頻諧波的通過Since piezoelectric resonant filter can not effectively prohibit higher - frequency harmonic, the mechanism of this problem has been discussed by means of a specific example which shows that there exists lots of undesirable resonant frequencies of piezoelectric that would let pass undesirable signals. to solve this problem , an ameliorated electrostatic mechanical resonant filter is proposed and a specific case is demonstrated. the example of electrostatic resonant micro - bridge asserts that by adjusting the gap of exciting capacitance the higher - frequency vibrating model of micro - bridge cannot be excited based on orthogonal character of intrinsic vibrating shape of micro - bridge, so that this kind of resonant filter can effectively filter out undesirable higher - frequency harmonic
提出壓電諧振濾波器不能很好地濾除高頻諧波的問題,結合一個具體例子理論推導了壓電諧振濾波器存在許多干擾諧振頻率,從而不能有效濾除一些特定頻率的干擾信號.為了解決這個問題,提出一種改進型的靜電激勵諧振濾波器.為了說明其可行性,具體分析了改進型雙端固支微梁靜電激勵諧振濾波器,理論推導證實基於雙端固支微梁的各階振型正交的原理,通過適當調整激振電容的間距,雙端固支微梁的高階振動模態受到很好的抑制,因此這種諧振濾波器可以有效阻止濾波器中心頻率的高頻諧波的通過All mobile phones may be subject to radio interference which may affect their performance
所有手機都可能因受無線電波的干擾而影響通話質量。What the subject researching is that power energy should be measured with base wave ammeter to power systematic nonlinear user ; and that it is high veracious by base wave ac parameters measurement method to those not bad contaminative. it is well known that all kinds of ac parameters including of base wave and harmonics, but the content of harmonics in power systems increase largely with the mass disturbance to power using high - power electric equipment. which makes wave shape of voltage and current aberrence, so the measurement veracity and reliability decreased largely. at the same time brings out serious infuency to safe run of power system and electric equipment. the power which any non - linear loads consumes can be divided into two sides, one is base power absorbed in power and the other is minus harmonics power
本課題所研究的問題是針對電力系統非線性負載用戶採用基波電度表來計量電能;而對諧波污染不嚴重的線性用戶採用基波交流參數測量的方法仍然具有較高的準確性。眾所周知,各種交流參量都包含基波和各次諧波,然而隨著電力電子技術的迅速發展,大功率的用電設備對電網的干擾也是越來越嚴重,導致電力系統諧波含量迅速增長,使電壓和電流的波形產生嚴重畸變,測量的準確性和可靠性都大大降低,同時也對電力系統和用電設備的安全運行帶來嚴重的影響。任何一種非線性負載所消耗的功率都可以分為兩部分,一部分為從電網中吸取的基波功率,另一部分則是負的諧波功率。分享友人