排序方式： 共有41条查询结果，搜索用时 0 毫秒
41.
Mizuno T. Saito H. Ichikawa M. 《IEEE transactions on aerospace and electronic systems》2000,36(1):151-162
In the Japanese LUNAR-A mission, penetrators will be deployed to the Moon for global seismic measurement. The unique communication system between the subsurface probes under the lunar surface and the lunar orbiter is described. Radiowave propagation through a crater which is formed at the penetration is investigated by means of scaled measurements in a simulating environment. Acquisition and tracking sequence is optimized within limited power capacity of the probe to maximize contact time between the probe and the spacecraft 相似文献