深空探测网（DSN）图片欣赏
堪培拉站的70米和34米天线 堪培拉站全景 金石（Goldstone ）站70米天线夜景 金石日落 金石破晓 马德里站的70米天线 马德里站的34米波导天线 射电望远镜DSN的介绍
Every U.S. deep space mission is designed to allow continuous radio communication with the spacecraft. Continuous 24-hour coverage for several spacecraft requires several Earth-based stations at locations that compensate for the Earth's daily rotation. The locations in Spain, Australia, and California are approximately 120 degrees apart in longitude, which enables continuous observation and suitable overlap for transferring the spacecraft radio link from one complex to the next.The Australian complex is located 40 kilometers (25 miles) southwest of Canberra near the Tidbinbilla Nature Reserve. The Spanish complex is located 60 kilometers (37 miles) west of Madrid at Robledo de Chavela. The Goldstone complex is located on the U.S. Army's Fort Irwin Military Reservation, approximately 72 kilometers (45 miles) northeast of the desert city of Barstow. Each complex is situated in semi-mountainous, bowl-shaped terrain to shield against radio frequency interference.
Each complex consists of at least four deep space stations equipped with ultrasensitive receiving systems and large parabolic dish antennas. There are:
One 34-meter (111-foot) diameter High Efficiency antenna.
One 34-meter Beam Waveguide antenna.
(Three at the Goldstone Complex)
One 26-meter (85-foot) antenna.
One 70-meter (230-foot) antenna.
Five new 34-meter beam waveguide antennas were added to the system in the late 1990's. Three were located at Goldstone, and one each in both Canberra and Madrid. To support the growing demands on the DSN, another antenna is currently under construction at the Madrid site.
The ability to array several antennas was installed to improve the data returned from the Galileo spacecraft. The array electronically links the 70-meter antenna at the Deep Space Network complex in Goldstone, CA, with an identical antenna located in Australia, in addition to two 34-meter (111-foot) antennas at the Canberra complex. The California and Australia sites concurrently pick up communications with Galileo.
All the stations are remotely operated from a centralized Signal Processing Center at each complex. The Centers house the electronic subsystems that point and control the antennas, receive and process the telemetry data, transmit commands, and generate the spacecraft navigation data.
Once the data is processed at the complexes, it is transmitted to JPL for further processing and distribution to science teams over a modern ground communications network.
都是用于与空间飞船联系的射电天线
回复
弄这么多火锅干什么？！涮蜜桃呗！
要不是这些火锅，你今天哪看得到空间探测器拍的照片？奇怪。。
它们之间有何相干？！回复: 涮蜜桃呗！
最初由 Melipal 发表要不是这些火锅，你今天哪看得到空间探测器拍的照片？
你们家吃涮锅子还涮桃啊？！:confused:
简直是胡吃啊。。。em11.gif
回复: 奇怪。。
最初由 meteorobs 发表它们之间有何相干？！
不知道你这是什么意思？:confused: DSN的主要作用是联系、控制空间飞船，飞船获得的数据也是通过DSN传回地面的……
把介绍看一遍你就知道了。 涮桃又怎么样？把你塞进去正好。
要不就是涮羊？看见马德里站前面草地上的羊了么？
这正是我要说的。。。
把功率那么大的天线建在牧场附近，很可能会对羊群产生不良影响。。。 没事，反正不影响吃羊肉------不一定涮蜜桃呀----可涮的东西很多----比如-----
呵呵呵 -------------火---------虾----------猫-----------龟-----------蛤------------兔------------
谴责！！！
最初由 mizar 发表没事，反正不影响吃羊肉------
不一定涮蜜桃呀----可涮的东西很多----比如-----
呵呵呵
没事，反正不影响吃羊肉------
简直太不人道了。。。em11.gif