space of paths 中文意思是什麼
space of paths
解釋
道路空間-
Based on xi ' an region meteorologic measurement relative humidity and temperature profile data in cloud cover, the log - amplitude scintillation deviation a, calculated in terms of the cn2 model compare with values predicted by means of ortgies model at 10 ~ 30ghz. it is shown that the c, 2 model can be applied at the continental climate area as xi ' an area. finally, on earth - space paths, by applying a modif
根據西安地區氣象觀測有雲覆蓋時溫度和濕度隨高度變化的數據，在10 30ghz ，應用該c _ n ~ 2模型計算了幅度閃爍標準偏差，也與ortgies模型預測值做了比較；表明該c _ n ~ 2模型是可用於象西安這樣的大陸型氣候地區。 -
According to statistics parameters of the typical clouds over xi ' an region and cloud data obtained from the global distribution of cloud cover under the auspices of world meteorological organization, for xi ' an region typical cloud, the parameters of khragian - mazin cloud drop size distribution are obtained. based on xi ' an cloud water content profile, on earth - space paths, attenuation due to cloud are calculated by means of the k - m distribution. it is shown that the attenuation induced by cloud are taken into account at ka - at elevation angle smaller than 30 and v - band paths
第三，根據西安地區氣象觀測數據，討論了西安典型雲的宏觀和微觀物理特性；根據西安典型雲的觀測結果和世界氣象組織提供的數據，得到西安典型雲的k - m雲滴譜參數；並根據西安地區雲的液水含量，計算了地一空路徑上雲的衰減，結果表明，在v波段和仰角小於30度的ka波段路徑，雲的衰減需加以考慮。 -
At short microwave and long millimeter wave bands, the ratios of the rain - induced attenuation on up - link to down - link are estimated on earth - space slant paths. a comparison of the prediction results with the experiment data in boston and kashima areas is carried out
在微波和毫米波低端，預測了地一空路徑上、下行鏈路雨衰減的比率，並與美國波士頓和日本kashima地區的實驗數據進行了比較，結果一致性較好。 -
In order to effectively use the vacant space beside the passenger train paths in the train running diagram of mixed passenger and freight lines and draw more freight train paths to improve the carrying capacity, the essay analyzes the reasonable drawing plan for freight train paths beside single passenger train arid two passenger trains respectively on the double tracked section with automatic blocking system according to the principle of minimal additional removal time and on the basis of the calculation method of removal coefficient table
摘要為了在客貨共線運行圖中有效利用旅客列車運行線兩側的空檔，盡可能多地鋪畫貨物列車運行線，以提高區段通過能力，在扣除系數表格計演算法的基礎上，按照附加扣除時間最少的原則，分析了在雙線自動閉塞區段單列旅客列車和2列旅客列車兩側貨物列車運行線的合理鋪畫方案。 -
Secondly, we apply tk operator to the cross - correlation of received signal code and pn code to separate the multi - paths. it comes to a conclusion that tk operator can separate the multi - paths within less than the chip period accurately of spread - spectrum system with space - modulation by simulation. at last, we apply this algorithm to the practical signal collected by gps tap, and from the result we can drop a conclusion the tk algorithm is practical
本文首先闡述了時空調制擴頻信號原理以及在多徑干擾下時空調制接收機的性能和teager - kaiser接收機的原理;接著對時空調制擴頻系統的解調信號與偽碼的互相關函數採用tk接收機進行多徑分離，模擬結果表明， tk接收機對時延在一個碼片內的時空調制擴頻通信多徑信號有很好的分離效果;最後用數據採集器對一個gps信號進行接收和多徑的估計，驗證了該演算法在實際的運用中對多徑的擴頻信號有很好的分離效果。 -
Zhang guying ' s mansion, an ancient architectural complex built in the ming and qing dynasties, has its unique architectural forms, such as the integral centripetal layout, crisscross lanes and paths, the expansion of the interior space by uncovered skylight, architectural adornment of ming and qing dynasties, etc. so it embodies the traditional chinese culture, which is extensive as well as profound
張谷英大屋是明清民居古建築群，本文從建築形式和建築文化兩個角度對張古英大屋進行了研究。其建築形式獨特之處主要有：合「中」向心的總體布局、縱橫交織的巷道、天井擴展室內空間的功能、裝飾的明清風格等等；其建築文化是中國傳統文化的體現，是無比博大和精深的。 -
( 1 ). here we build the system space geometry model : the transmitter and receiver fly on different platforms and at different height, two flight paths are unparallel. based on the chirp signal and the taylor series, we analyze the range history and synthetic aperture time, then demonstrate the equation of the azimuth resolution about air - born bistatic spotlight synthetic aperture radar, meanwhile we obtain the equations of doppler bandwidth and doppler frequency modulate rate
本文以機載聚束式合成孔徑雷達成像作為研究背景，主要完成了以下幾方面的工作: （ 1 ）建立了一種機載雙站聚束式sar空間幾何數學模型，對方位分辨力進行了理論分析，進行了數值分析與模擬，討論了不同條件對雙站聚束模式sar系統分辨力的影響。 -
In this part, the two anterior chapters mainly discuss the various basic theories used by the designing for the propagation paths of the electric wave. the theories include the computation methods for the fade and the loss of various propagation paths and obstructions, the engineering estimation methods of the flat fading and frequency selected fading, the designing methods of space diversity and frequency diversity, etc. at the same time, the special designing method of the sea - across path is discussed in detail
本文首先闡述了微波中繼通信工程設計中的相關知識，其中前兩章主要論述了線路設計中所用到的種種理論基礎知識，包括對于各種路徑情況、障礙情況的衰落與損耗的不同計算方法，平衰落與選擇性衰落中斷率的估算方法，天線分集和頻率分集技術的理論知識和設計方法等等。
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