Second, this paper analyzes the time - frequency distribution of the clutter from airborne pulse doppler radar ( pdr ). the side - lobe clutter, which is the main factor to influence the pdr, is analyzed and calculated. based on the simulation of typical geometry of the land, we analyze and discuss the side - lobe clutter and concluded that the dft of can be considered as the phase of the coho
並且根據各種典型地貌的近似模擬,從統計特性上和頻率域上對脈沖多卜勒雷達的旁瓣雜波進行了分析討淪,還得出脈沖多卜勒雷達的
df
t可以近似地看作相參積累,並在程序的編制中利用了這一個結論。
On the basis of investigation and research about the technology of reconstruction for ict image up - to - date, this paper is devoted to develop an algorithm for image reconstruction based on wavelet theory. in this paper, time - frequency distribution for spatially varying filter was used to construct convolve - kernel by dwt, to modify convolve - back - projection algorithm
本文在國內外有關c
t圖像重建的研究狀況基礎上,根據小波分析理論,利用小波變換在時頻空間的可變性,用
dw
t變換構造卷積核,對卷積反投影演算法做了改進。
Same as cst with dst rules
與具有
ds
t規則的cs
t相同
Dwt series dryer for vegetable dehydration os special equipment researched and developed on the basis of traditional net belt dryer, it has stronger pertinency, practicability and high efficirency of energy, it is whde used for all kinds of vegetables dehydration such as garlic, cushaw, giantarum, white turnip, yam, bamboo shoot, dtc at different region and season, our factory has more 50 of customers and more 80 of production line in cooperation. our factory is an enterprise with the richest experience to manufacture dryer for vegetables dehydration, the technicians of our factory
Dw
t脫水乾燥機是在傳統網帶式乾燥機基礎上研究開發的專用型設備,具有較強的針對性、實用性,能源效率高,廣泛適用於各種地區性和季節性蔬菜、果品的脫水乾燥,如:蒜片、南瓜、魔芋、白蘿卜、山藥、竹筍等,已擁有用戶50多家,在線設備80多臺套,是國內最富經驗的蔬菜乾燥設備生產企業,工廠科技人員長期跟蹤服務于這些用戶。
Edit autoexp. dat to add the following lines
編輯au
toexp .
da
t以添加下面的行:
Method saves the salt and iv values to a. dat file
方法將sal
t和iv值保存到.
da
t文件中。
Many insects have became resistant to ddt
很多昆蟲對
ddt都有了抵抗力。
Then came the golden days of ddt ( dichlorodiphenyltrichloroethane )
然後就是
ddt的黃金年代。
Chlorinated hydrocarbon a hydrocarbon in which one or more hydrogen atoms are replaced by chlorine atoms. some chlorinated hydrocarbons are used as insecticides, e. g. aldrin, dieldrin, and ddt
氯代烴類:烴中一個或多個氫原子被氯原子取代。一些氯代烴類被用來作殺蟲劑。如艾氏劑、狄氏劑和
ddt 。
Digital audio tape cassette system ; part 3 : dat tape properties
數字錄音磁帶盒系統.第3部分:
da
t磁帶性能
Digital audio tape cassette system ; part 2 : dat calibration tape
數字錄音磁帶盒系統.第2部分:
da
t校準磁帶
The experimental results show that the small targets submerged by the large ones can be detected effectively, and better accuracy and shorter computation can be obtained by using the modified rwt than radon - wigner transform
本章首先分析了基於離散多項式變換(
discre
tepolynomial - phase
transform ,
dp
t )參數估計的原理,並將
dp
t應用於多目標分辨中。
Same as est with dst rules
與具有
ds
t規則的es
t相同
To demonstrate how tricky dst rules can be, try running this code snippet
為了證明
ds
t規則有多復雜,可以嘗試運行下面這個代碼片段:
Dwt systems have proven this in numerous applications
Dw
t的系統在許多實際應用中已經證明了這點。
Standard on dt dx same media weight and sizes as tray 3
Dt dx型號為標配介質重量及尺寸與紙盤3相同。