基于子午工程北大深圳站（22.59°N，113.97°E）电离层GPS双频接收机在2011年1月1日至2017年12月31日连续7年的长时间序列闪烁和TEC观测数据，分析不同太阳活条件下华南赤道异常北驼峰区观测到的GPS卫星L波段电离层闪烁事件时空分布特征及其对通信的影响.结果表明：GPS闪烁事件几乎都发生在夜间，且主要发生在春秋分月份；在不同太阳活动条件下，夜间GPS闪烁事件都主要发生在北驼峰区域靠近磁赤道的一侧，且GPS闪烁事件存在明显的东-西侧天区不对称性，即在台站西侧天区发生的闪烁事件明显偏多；在不同太阳活动条件下，弱闪烁事件伴随的TEC耗尽和卫星失锁事件比例相对较低，强闪烁事件则大部分都伴随着TEC耗尽和卫星失锁事件的发生.

Based on the comprehensive analysis of laser kinetics and hydrodynamic processes of alkali vapor laser amplifiers and combined with the thermal effect, saturation amplification effect, amplified spontaneous emission, and high level excitation and ionization, a comparatively ideal physical model is established to simulate the output characteristics of diode-pumped alkali vapor laser amplifiers under flow and heat dissipation conditions. The influence of gas flow velocity on output power is simulated with two different flow modes in longitudinal and transverse directions. The variation trend of the particle number density at high pumping power density is compared and analyzed. Finally, the effect of the power distribution ratio of the amplifier in each stage on the improvement of cascade amplifier output power is simulated. Results show that under the same operating temperature condition, multiple equal-length steam pools and equal distribution of pumping power allow high-level amplifiers to achieve higher magnification than that of low-level amplifiers. Thus, the model contributes to the parametric selection and optimization of the design of alkali vapor laser amplifiers.

介绍了一种体积小(180mm×120mm×100mm)、重量轻(2.0kg)、功耗低(10.8W)并适合于在空间应用的紫外可见光谱仪. 同时提出一种将紫外可见光谱仪连接到空间生物舱总控器上的接口方案. 利用该方案设计的接口电路, 成功地将紫外可见光谱仪中的光谱数据传送到空间生物舱的总控器上, 使得地面监控人员能够直观地看到紫外可见光谱仪的测量数据. 介绍了紫外可见光谱仪与空间生物舱中总控器接口的通信协议和接口结构, 通过RS232接口从光谱仪中获取光谱测量数据, 通过CAN2.0B接口将光谱数据传送给空间生物舱的总控制器, 进而给出系统测试结果.