a system of along-track mode sar based on the gps is established.by seeing the gps signal as a chirp,chirp scaling algorithm of this mode with large squint angle is investigated.chirp scaling algorithm is considered more efficient and widely applicable when the bistatic sar system is in side-look or small squint angle mode,but in large squint angle case,the errors caused by taylor expansion are so large that the algorithm could lose its precision.in such a case,an equivalent mono-static sar range mode which has fewer errors than taylor expansion with large squint angle is proposed to substitute the range history of bistatic sar.then bistatic sar images with large squint angles are gotten by common nonlinear cs algorithm.the effectivity of the method is verified by matlab simulation.

摘 要：建立了基于gps的順軌sar系統(tǒng)模型好吊色中文字幕精品在线观看，通過將gps信號等效為chirp信號亚洲h视频免费观看，研究了在該模式下的大斜視角chirp scaling算法国产精品黄色视频哪里有。在正側(cè)視或小斜視情況下欧美成αⅴ人在线视频，cs算法具有較好的聚焦性能和廣泛的適用性华人永久免费在线视频，但在斜視角較大的情況下国产在线无码一区二区三区视频，該算法將散焦而不能成像，因而提出了用等效的單基地距離模型來代替雙基地距離歷史的方法成年片色大黄全免费网站久久，解決了大斜視角情況下距離模型二階近似誤差較大的問題黄色青草视频e，并結(jié)合單基地非線性cs算法，實現(xiàn)了在大斜視角情況下的基于gps反射信號的雙基地sar高精度成像欧美日韩精品福利在线观看，最后通過matlab仿真進行了驗證天天操夜夜操一区,二区,三区,。

Group 1 with fixation of facet joint screw had a significant increase in stiffness for extension, bilaleral bending, and colockwise rotation.

經(jīng)側(cè)后方斜向植入的單枚椎間融合器加上小關(guān)節(jié)突螺絲釘內(nèi)固定融合術(shù)，在提供充分椎管減壓的同時一级视频在线观看免费播放，具有損傷小人人干,人人草、脊柱后部穩(wěn)定性好、術(shù)中對馬尾及神經(jīng)根牽拉輕的優(yōu)點https国产黄视免费，可以比較理想地取代后路雙枚融合器椎間融合術(shù)国产2021精品。

The ballerina rose gracefully en pointe and extended one slender leg behind her, like a dog at a lamppost.

芭蕾舞娘優(yōu)雅地以腳尖站立，把另一只瘦長的腿伸到身后亚洲精品精品熟妇熟妇，正像一只狗把腳斜靠在燈柱上一樣亚洲人成人一二区在线观看。

The ballerina rose gracefully en pointe and extended one slender leg behind her, like a dog at a lamppost.

芭蕾舞娘優(yōu)雅地以腳尖站立少妇熟妇亚洲综合网站，把另一只纖細的腿伸到后方，正像一只狗把腳斜靠在燈柱上一樣日韩成人网址播放视频在线播放免费。

The ballerina rose gracefully en pointe and extended one slender leg behind her, like a dog at a lamppost.

芭蕾舞娘優(yōu)雅地以腳尖站立5区av在线播放，把另一只纖細的腿伸到后方，正像一只狗把腳斜靠在燈柱上九色popny200。

Hasan on October 18 in Tianmen Shan's high major challenges gradient walking a tightrope, to walk 650 meters success, but in the end from 50 meters away from the slide to sit at 400 Meters high on a tightrope.

艾山10月18日在天門山的高空大斜度走鋼索的挑戰(zhàn)中国产在线精品99一区，成功行走650米，但在離終點50米處滑坐于離地400多米高的鋼索上国产在线精选免费。

A quick sketch shows the walls broken, the central area punctured by the ley line, one of the towers shattered against the mountain, jungle to the west and north...

粗略的原畫展現(xiàn)了破損的城墻色喲哟，被地裂撕開的中部地區(qū)，一個城堡倒塌斜靠在山上操操干操干，叢林延伸到西邊和北邊日韩在线vip福利电影网。

Through the curve fitting,the almost real angle is obtained,which is used in the correction of the time-lag error.

數(shù)值分析的結(jié)果表明，通過修正時延偏差能有效地改善彈丸斜入射對定位精度的影響手机看片1024乱伦。

France Holly Yijian not cutting deep division branchlets cutting-down section, depth to 1 cm soil trees were suitable; the depth of the cutting insert for the next node, in one centimeter, and the cuttings from 45 degrees tilt, shallow inserted Chacha to advance rooting cuttings survived.

法國冬青扦插宜淺不宜深日韩色图欧美色图，小枝分株扦插平截面向下，深度以母株人土1厘米為宜多人操逼视频；大枝扦插的深度為下一莖節(jié)插入上中1厘米黄色录像一区二区三区中文字波，插穗與地而成45度左右傾斜，淺插斜插有利于插條提前生根成活亚洲一区免费观看。

As to improving the overall performance of the total devices, how to analyze the lubrication characteritics of helical gear in the pratical working condition is very important.

正確地分析實際工況中斜齒輪的潤滑特性黄片在线免费没播放，對提高整個機構(gòu)的總體性能十分重要。