optical antenna 中文意思是什麼
optical antenna
解釋
光波段天線-
By calculating parameters including the link length, the azimuth angle, the elevation, the optical power that the inter - satellite optical cdma communication system will receive, the variation range of the azimuth angle and the elevation from the optical antenna of atp are understood well. by analyzing the factors to impact bit - error - rate ( ber ) from the received power, multi - user disturbing, background noise, wavelength, bit rate etc, measures to guarantee high performances of the system are obtained, especially those for smoothing the fluctuation of the received optical power from host platform vibration
分析研究了衛星光cdma通信系統中衛星仰角、方位角和距離，給出了探測器能夠接收到的光功率以及atp子系統捕獲及跟瞄的范圍;對衛星光cdma通信系統性能模型和基於衛星振動系統性能模型的研究，分析了多用戶干擾、接收光功率、背景光噪聲、振動偏差以及碼速率對系統誤碼率的影響，給出了相應的改進措施。 -
We present a calculation program in this paper, based on the physical optical theory ( po ) theary to predict bse and bses for a conical type of radome. the po theory is used to determine the ficticius currents electrical and magnetic on the inner face of the radome, which is illuminated directly by the radar antenna, and then use the transmission matrix mothod to determine the outer surface ficticion currents, the radiated from the antenna through radome is considered as the radiation field of these ficticion current
本文提出了一種基於物理光學理論預測正圓錐天線罩瞄準誤差及瞄準誤差斜率的計算程序。首先，雷達天線照射到天線罩內壁，應用物理光學法求出內壁等效的電流和磁流，其次，根據傳輸矩陣理論求出外壁等效電流和磁流，天線通過天線罩的遠區場即可認為是外壁等效電、磁流產生的場。 -
1550nm is chosen as the work wavelength, cassegrain transmitting - receiving antenna as the optical antenna of the system through the elucidation of how to choose the work wavelength and optical antenna of comm - unication system. the structure and theoretical design parameter of apt sub - system have been presented through the discussion of the optical signal power estimation of apt sub - system, beam divergence angle, pointing error, and error signal extraction. compared with existed optical wireless communication system, the design scheme proves applicable
通過對通信系統工作波長選擇、光學天線選擇等闡述，選擇了1550nm作為系統工作波長、卡塞格倫（ cassegrain ）收發合一天線作為系統光學天線；通過對apt子系統功率測算、束散角和瞄準誤差、誤差提取信號等的討論，給出了apt子系統結構和理論設計指標，並將其與現有的光無線通信系統進行比較，說明該設計方案是可行的。 -
At present, our main products consist of power cable, communication optical cable, wire and cable for electric equipment, control cable, aerial insulated cable, coaxial antenna, wire and cable for electronic equipment, power supply cords, fire performance cables, bare wire, pvc
總廠目前可生產電力電纜通信光纜控制電纜架空絕緣電纜電氣裝備用電線電纜同軸電纜電子電器配線汽車線電機引接線電源插頭線阻燃耐火系列電纜電纜料裸電線等產品。 -
Firstly, the work principle of staring laser detection optical system is introduced, and the relation between optical antenna ’ s amount and fov in laser warning system of optical antenna array is deduced
首先闡述了凝視型激光輻射探測光學系統的工作原理，推導了光學天線陣列激光告警系統中光學窗口數與光學單元視場角應滿足的關系。 -
Comparing with uncovered antennas with the same gap size, the covered antenna has higher breakdown voltage at the same optical exciting power, and it ' s thz out put is 1. 5 times of uncovered antenna
與未鈍化的光電導偶極天線相比， si3n ;鈍化過的光電導偶極天線耐壓能力顯著提高，其輻射功率約為未鈍化天線的1 . 5倍。 -
Therefore, it is important to select and design the right optical antenna
因此，選擇和設計適宜的天線系統有著重要的意義。 -
The main products are optical transmission equipment, pcm equipment, scada system. besides, the shortwave broadband antenna and power counters
恆光公司主要產品有光通信設備， pcm設備以及scada系統，此外恆光公司每年承擔短波寬帶天線和電源列頭櫃等軍品生產任務。
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