Further Study of Physiological Mechanism of the Saline-alkali Tolerance of Puccinellia tenuiflora;
星星草耐盐碱生理机制再探讨
Research Progress in the Effects of Puccinellia tenuiflora on the Physical and Chemical Properties of Alkaline Soil;
星星草对碱化土壤理化性质的影响
Preliminary Identification of Root Specific-Expressed Protein in Puccinellia tenuiflora under NaHCO_3 Stress;
NaHCO_3胁迫下星星草根特异表达蛋白初步鉴定
Prophylactic and therapeutic effect of WEIXINGXING Secret Recipe on rat ulcer models;
胃星星秘方对大鼠不同模型胃溃疡的防治效果分析
Study of geometric characteristics of inter-satellite links between LEO layer and MEO layer in LEO/MEO satellite constellation;
双层卫星星座层间链路几何参数特性研究
Tentative plan of a micro-satellite constellation used for reconnaissance;
微小卫星星座用于侦察的设想
The Study on Architecture and Key Technologies of the Military Satellite Constellation Communication Network Based on NEMO;
基于NEMO的军事卫星星座通信网络体系结构与关键技术研究
Handoff data registration strategy in satellites constellations communication system;
卫星星座通信系统的切换数据登记策略
In order to minimize the mobility management signaling cost, the general scheme is to reduce the location update interval and the use of paging beams in satellites constellations communication system.
在卫星星座通信系统中,往往通过降低位置更新频率或减少位置寻呼波束的方法达到减少系统开销的目的,这势必会造成位置寻呼成功率的降低及处理时延的增加,为此提出了采用位置寻呼补救策略的思想,通过仿真验证,补救策略可以用很小的信令开销,在移动终端相关位置区内完成小区重新定位,从而提高整个系统的呼叫成功率。
Call drop will occur when no satellite can be visible,handoff is not real-time and the corresponding response is lost in satellites constellations communication system.
卫星星座通信系统中,无物理可见卫星、切换不及时和应答丢失造成正在通信的移动终端被迫掉线,挂机申请如不能及时送至网络管理中心,则无法正常释放信道资源,导致系统阻塞率增加。
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