雷達作用距離 的英文怎麼說
中文拼音 [léidázuòyòngjùlí]
雷達作用距離
英文
burn-through range- 雷 : 1. (雲層放電時發出的響聲) thunder 2. (軍事上用的爆炸武器) mine 3. (姓氏) a surname
- 達 : Ⅰ動詞1 (暢通) extend 2 (達到) reach; attain; amount to 3 (通曉; 明白) understand thoroughly...
- 用 : Ⅰ動詞1 (使用) use; employ; apply 2 (多用於否定: 需要) need 3 (敬辭: 吃; 喝) eat; drink Ⅱ名...
- 距 : Ⅰ名詞1 (距離) distance 2 (雄雞、雉等的腿的後面突出像腳趾的部分) spur (of a cock etc )Ⅱ動詞...
- 離 : Ⅰ動詞1 (離開) leave; part from; be away from; separate 2 (背離) go against 3 (缺少) dispens...
- 雷達 : [訊] radar (縮自 radio detection and ranging)
- 距離 : 1 (相隔的長度) distance; range; gap; space; spacing; separation 2 (相距) be apart from; be aw...
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Based on the model of safe following distance, the design blue print of system is presented in the text. using the multiple impulses horae rotate speed sensor to measure the vehicle speed and nanometer radar to measure the distance of own vehicle to frontal vehicle, and analyzing and judging collected information by at89c51 which is the control centre of the system
本文在安全跟車模型的基礎上,提出了系統方案:採用霍爾多脈沖轉速傳感器測量汽車的速度,毫米波雷達測量兩車的距離和相對速度,利用at89c51作為信息採集單元的控制中心,對各種信息進行分析判斷,當行車距離小於報警距離時啟動相關的報警單元。The character of radar system is restricted by parasitical am. to restrain parasitical am, a low pass filter is used in the if circuit. the result shows that the fmcw detecting range of the radar with the filter is greater than that without
較大的vco寄生調幅對雷達的作用距離有嚴重影響,對此,本文進行了分析,並提出了一種在中頻電路中用濾波電路進行抑制由寄生調幅帶來的于擾信號的方法。Because of the presence of the first - order sea echoes with dominant amplitude, the doppler resolution technique which based on the range - velocity transformation is needed to extract the targets information in hf radar
高頻雷達工作在擁擠的短波波段,由於絕對占優的一階海浪回波的存在,必須採用基於距離?速度譜變換的多普勒頻率分辨技術來處理雜波,以提取目標信息。Inverse aperture radar ( isar ) can image non - cooperative moving targets such as aircrafts, ships and celestial objects over a long distance under all weather and all day. it is of particular interest for strategic defense, anti - submarine warfare and radar astronomy
逆合成孔徑雷達( isar )能夠對飛機、艦艇、天體等非合作運動目標進行全天時、全天候、遠距離成像,在戰略防禦、反衛星、戰術武器以及雷達天文學中都有重要應用價值。With modern weapon and modern wingmanship being developed, the higher performance of the radar, such as action range, resolution, measure precision and so on, are required
隨著現代武器和現代飛行技術的發展,對雷達的作用距離、分辨力和測量精度等性能指標提出了越來越高的要求。The mainly work of this project : 1 a mathematic model of the ground clutter for airborne pd radar is established and the clutter power spectrum is calculated by the method of integrating reflected energy between constant doppler loci in range - gate circle
本課題的主要工作包括:一、對機載相控陣雷達的雜波功率譜進行數學建模,採用沿距離門等多普勒線區域積分的方法求解雜波功率譜。When radio waves pass through half of the first jump distance, the effects of meteor trails scattering on a radar system are investigated
計算了電波經電離層跳躍前進的過程中,流星余跡散射對後向散射超視距雷達系統性能如作用距離和發現概率等的影響。Based on the lambert law of cosines, a form of ladar equation, which is easy to apply, is deduced. an effective method of calculating the maximum detectable distance is proposed based on the theory of signal detects statistics
根據朗伯餘弦定律推導出激光雷達方程的一種便於使用的形式,根據統計信號檢測理論提出了一種計算作用距離的有效方法。Pulse compression technique is widely used in modern radar systems, to resolve the contradiction between the distance and resolution
現代雷達系統廣泛採用脈沖壓縮技術,用以解決作用距離與分辨能力之間的矛盾。Pulse compression technique and large timeband product signals such as linear frequency modulation signals, nolinear frequency modulation signals, phase coded signals and so on are widely used in modern radar systems to improve the resolving power both in range and in speed domain
現代雷達為了提高雷達作用距離和速度分辨力、距離分辨力,廣泛採用了脈沖壓縮技術及大時寬帶脈壓信號如:線形調頻、非線形調頻、相位編碼信號等。Pulse compression technique is widely used in modern radar systems. it solves the contradiction between the range and velocity resolution. large time - bandwidth product signals such as linear frequency modulation signals ( lfm ) are used in pulse compression technique to improve the resolution in range domain
現代雷達系統廣泛採用脈沖壓縮技術,在確保雷達作用距離和速度分辨力的前提下,採用大時帶積脈沖壓縮信號:如線性調頻( lfm )信號提高距離分辨力。Moreover, the pulse compression radar has been widely used in practice because of its far detection range and good range resolution
此外,為了解決雷達作用距離和距離分辨力之間的矛盾,脈沖壓縮機技術在現代雷達系統中被廣泛採用。The theory of laser range finder is firstly introduced in this paper. then based on the laser radar ranging theory, the laser radar ranging equation, the effect of the travel characters of the laser in the air on the measurement and the laser ranging snr equation are discussed
本文首先介紹了激光測距原理,然後從激光雷達測距理論出發,以激光雷達作用距離方程、激光的大氣傳輸特性對測距的影響、激光雷達的信噪比作為理論基礎,進行了方案設計。Radar emits wide pulse to ensure the distance, and gets narrow pulse by using corresponding pulse compression method when receiving. this is pulse compression
脈沖壓縮是指雷達通過發射寬脈沖,保證足夠的最大作用距離,而接收時,採用相應的脈沖壓縮法獲得窄脈沖以提高距離解析度的過程。Pulse compression technique is widely used in modern radar systems. large timeband product signals such as linear frequency modulation signals ( lfm ), nonlinear frequency modulation signals ( nlfm ), phase coded signals and so on are used in pulse compression technique to improve the resolution in range domain
現代雷達系統廣泛採用脈沖壓縮技術,在確保雷達作用距離和速度分辨力的前提下,採用大時帶積脈沖壓縮信號:如線性調頻( lfm ) 、非線性調頻( nlfm )和相位編碼信號等,提高距離分辨力。Space meeting includes radar beam availability distance, the angel scope that radar can observe, the difference because of the earth ' s covering. finally, we analyse the meeting of the target and radar sub - beam
空間交會包括雷達作用距離,雷達可觀測的角度范圍,地球的遮擋而引起的雷達可觀測范圍的改變,最後分析了雷達子波束和目標的交會情況。Energy distribution involves many radar ' s parameters, such as peak power of transmitter, maximum pulse width, antenna gain, rotating speed of antenna, beam width, covering range of elevation, maximum height and range and so on
能量分配牽涉到雷達系統的各種重要參數如發射機峰值功率、最大發射脈寬、天線增益、天線轉速、波束寬度、仰角覆蓋范圍、最大高度覆蓋、最大作用距離等。Considering that : ( 1 ) radar can achieve its basic application of collision avoidance and warning with the only function of ranging ; ( 2 ) under high speed conditions, radar should have lager effective range than that under slow speed, we designed a new easily realizable automotive anticollision radar, which employs centimeter wave and square pulse amplitude modulation
考慮到: ( 1 )核心的測距功能實現以後,雷達已經能夠完成基本的防撞預警; ( 2 )在汽車高速運行的情況下,防撞雷達的最小可測距范圍和最大作用距離應比低速狀態下大。本文採用了技術成熟,易於工程實現的厘米波脈沖雷達,以單波束輻射的方式測距。The safety installation of the automobile bumpproof is a very hot topic nowadays, and it is also one of the most important part of intellectual traffic. we use the compound radar and fm coding technology, choose the unique route to produce and develop the expressway automobile bumpproof and alarming installation, which solve the " false alarming " problem that occurs while b eing interrupted in the complicated traffic conditions
汽車防撞安全裝置是當今世界的熱門話題,是智能交通的重要組成部分,我公司開發生產的高速公路汽車防撞報警裝置採用復合雷達和調頻編碼技術,選擇獨特的技術路線,解決了復雜交通環境下因干擾而產生的"虛警"而且作用距離遠,反應速度快,可靠性高。A important conclusion is verified from these analysis that although the azimuth resolution of sar radar is theoretically not connected with parameters such as radar range and center frequency, in fact, on the condition of same resolution, when the range becomes further and center frequency become lower, the requirement for the radar power gain production, signal processing and precision of ins will be higher, therefore the imaging will become more difficult
同時也證明了一個重要的結論:從理論上講,合成孔徑成像的方位解析度與作用距離、雷達工作頻率等參數無關,但實際上,在解析度保持不變的情況下,隨著作用距離的提高,工作頻率的下降,對雷達的功率孔徑積、信號處理以及慣導精度的要求會越來越高,從而成像也會變得越來越困難。分享友人