脈沖星信號 的英文怎麼說
中文拼音 [màichōngxīngxìnháo]
脈沖星信號
英文
pulsar signal-
The conventional sphere model of earth and circle model of orbit are discarded, and the ellipsoid model and the ellipse model are selected for further research, which achieves a method to determine the target position through the antenna pointing direction. and the spaceborne sar system design and simulation software is brought forth. this software accomplishes sar system coefficients design for antenna area, pulse repetition frequency, signal bandwidth, downlink data rate, radar transmitter power and satellite platform yaw steering
本文從星載雷達的星地幾何關系入手，舍棄傳統星載合成孔徑雷達研究中的球地球模型和圓軌道模型，研究了在地球橢球模型和橢圓軌道模型下由雷達天線確定目標坐標的方法，並在此基礎上研製了星載合成孔徑雷達系統設計與模擬軟體，完成雷達系統天線尺寸、脈沖重復頻率、信號帶寬、雷達信號數據率、雷達發射功率、衛星平臺的偏航牽引等幾個方面的系統參數設計以及雷達多普勒特性、雷達系統模糊、雷達定位及精度的分析，最後完成雷達回波信號的模擬。Pulsar signals should be nearly sinusoidal after the doppler shifts are taken out, so fourier transforms pick them up pretty easily
當多普勒偏移去除后，脈沖星的信號應當近乎是正弦曲線的樣子，所以傅里葉變換可以很容易的去除多普勒效應。Solar array simulator is programmed in labview to simulate the running condition of satellite ( such as sun angle, shadow time, orbit and so on ). electronic load is programmed in labview to simulate the running condition of satellite load. by data collecting and processing, satellite power engineers can monitor and evaluate working condition of satellite power system
該測試評估系統應用labview軟體對太陽能電池陣列模擬器進行編程，模擬太陽能電池在空間各種狀態下（軌道、光照角、進出陰影等）的情況；對電子負載進行編程，模擬衛星負載的各種變化（平均負載、短期負載和脈沖負載）情況，信號採集和數據處理單元在測試評估系統運行過程中記錄電源系統各組成部分的工作參數，據此對衛星電源系統進行測試和評估。Such sources are believed to be either quark stars or neutron stars, and a subclass of these are already observed by conventional means as pulsars or x - ray emitting celestial objects
一般認為這些信號源就是夸克星或中子星，其中一些已經通過傳統的方法觀測到，稱為脈沖星。分享友人