校準天線 的英文怎麼說
中文拼音 [jiàozhǔntiānxiàn]
校準天線
英文
boresight antenna-
Gps is a planet wireless conductance system which is global and all - weather, gps can offer high precision time orientation information to infinite user, clock precision reachs 10 ? 6 magnitude 。 not only changes traditional time method of quartz crystal clock, but also replaces wireless shortwave and even more lowfrequency signal and tv signal whose overlay range is limited and low precision, offers advantage to geology field task, achieve automatization and high precision of seismic flow observation
利用gps授時信號全方位、全天候、連續性、實時性和高精度的特點，以gps信號為基準來校準本地時鐘（晶體振蕩時鐘或原子鐘） ，將gps接收機輸出信號的長期穩定度和恆溫晶振的短期穩定度相結合，應用大規模可編程邏輯器件，設計和實現了由pc104控制的實時在線授時系統。A new method and the principle is presented for plotting the critical metacentric height curve which meets imo ' s intact stability criteria and weather criteria, and the critical metacentric height curve which meets 1976 solas intact stability criteria. and the critical metacentric height curve is used in the stability check of bulk grain carriers in accordance with the stability rules for bulk grain ca rriers
本文還具體給出了滿足imo完整穩性和天氣衡準的臨界初穩性高度的求作方法，以及滿足1976solas公約散裝穀物船舶的穩性衡準要求的臨界初穩性高度的原理和求作方法，並將由此得到的臨界初穩性高度曲線綜合運用到散裝穀物船舶的穩性校核。Digital beam forming ( dbf ) is a kind of new technique which based on the antenna beam forming and the well - developed digit signal processing. the technique should convenient obtains high resolution and low sub beam by sufficiently utilizing of the space message received by array antenna. and make the technology of beam scanning, self - calibrating and adaptive beam should be realized easily
數字波束形成（ dbf ）是在天線波束形成的基礎上，引入先進的數字信號處理方法后建立起來的一門新技術，這種技術可以充分利用陣列天線檢測到的空間信息，並易於獲得超解析度和低副瓣，實現波束掃描，自校準和自適應波束形成等。Specification for radio disturbance and immunity measuring apparatus and methods - radio disturbance and immunity measuring apparatus - antenna calibration test sites for 30 mhz to 1 000 mhz
無線電干擾和抗擾測量儀器和方法規范.無線電干擾和抗擾測量儀器. 30mhz至1000mhz的天線校準試驗裝置Additionally, the mutual coupling characteristic of adaptive antennas is analyzed by mom and equivalent network method, and the data model is built considering the mutual coupling of antennas arrays. the effect of mutual coupling on music algorithm is also studied, and we get a method to find the mutual coupling matrix based on music algorithm. finally, the effects of mutual coupling and rf channel imbalances on td - scdma are investigated, which will provide a reference for system design
最後在矢量通道模型分析基礎上，深入地研究了td ? scdma系統中自適應天線與聯合檢測相結合技術，從系統矩陣和誤碼率模擬兩方面考察了自適應天線對聯合檢測性能的改善，並分析了陣列互耦和射頻通道校準誤差對td ? scdma系統上行性能的影響，為系統設計提供了依據。分享友人