divergent squint
- divergent squint的基本解释
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[医] 散开性斜视, 外斜视
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- 更多 网络例句 与divergent squint相关的网络例句 [注:此内容来源于网络,仅供参考]
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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的顺轨sar系统模型,通过将gps信号等效为chirp信号,研究了在该模式下的大斜视角chirp scaling算法。在正侧视或小斜视情况下,cs算法具有较好的聚焦性能和广泛的适用性,但在斜视角较大的情况下,该算法将散焦而不能成像,因而提出了用等效的单基地距离模型来代替双基地距离历史的方法,解决了大斜视角情况下距离模型二阶近似误差较大的问题,并结合单基地非线性cs算法,实现了在大斜视角情况下的基于gps反射信号的双基地sar高精度成像,最后通过matlab仿真进行了验证。
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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.
在正侧视或小斜视情况下,CS算法具有较好的聚焦性能和广泛的适用性,但在斜视角较大的情况下,该算法将散焦而不能成像,因而提出了用等效的单基地距离模型来代替双基地距离历史的方法,解决了大斜视角情况下距离模型二阶近似误差较大的问题,并结合单基地非线性CS算法,实现了在大斜视角情况下的基于GPS反射信号的双基地SAR高精度成像,最后通过Matlab仿真进行了验证。
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A genechip analysis was performed using RNAs derived from embryos injected with squint mRNA, MZoep mutant embryos that are deficient in Nodal signaling, and wildtype embryos at the 30% epiboly stage Transcriptswith at least two-fold changes in expression level between wildtype and the other samples were identifyied In squint mRNA-injected embryos, 265 transcripts show anincreased expression level and 111 have a decreased expression level; in MZoep embryos, the expression of 1 495 transcripts increases while 550 transcripts express at a decreased level.
为鉴定受Nodal信号调控的基因,特别是那些转录因子基因,通过将来自squint过量表达、缺失Nodal信号的MZoep突变体或野生型30%外包期胚胎的RNA与Affymetrix斑马鱼寡核苷酸芯片杂交。
- 更多网络解释 与divergent squint相关的网络解释 [注:此内容来源于网络,仅供参考]
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divergent birth process:发散增延过程
divergent 发散,分散,辐散的,偏离,偏斜的,岔开的=>発散の | divergent birth process 发散增延过程 | divergent branching system 发散分支系统
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divergent sequence:发散序列,发散层序
发散反射 divergent reflection | 发散序列,发散层序 divergent sequence | 辐散构造 divergent structure
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divergent sequence:发散序列Btu中国学习动力网
divergent iteration 发散性迭代Btu中国学习动力网 | divergent sequence 发散序列Btu中国学习动力网 | divergent series 发散级数Btu中国学习动力网