| |||||||||
|
|||||||||
Professor EmeritusDepartment of Electrical Engineering and Computer Sciences University of California at Berkeley |
Office:
Phone: 510-642-3214
|
The easiest way to reach me is by email:
Administrative Assistant
|
BIRD'S EYE VIEW OF NASA DEEP SPACE NETWORK (DSN) AT GOLDSTONE, MOJAVE DESERT, CA |
PROF. LAU'S GROUP AT DSN, CIRCA 1995 |
![]() |
![]() |
GRADUATION '96 |
ABOUT THE PHOTOS: |
![]() |
"Graduation '96" is self-explanatory. Prof. Lau's students graduated en-mass that year. The other photo "Prof. Lau's group at DSN, circa 1995" was taken during a field trip; Prof. Lau took his group to the "Deep Space Network" in the Mojave Desert in Southern California. There are a dozen or so big antennae which are still used by NASA to track and communicate with deep space probes. The reason Prof. Lau took his group there was because, in order to improve tracking sensitivity so as to allow tracking of the spacecrafts to beyond the solar system, all the antennae are "synchronized" to a remote precise hydrogen maser clock, so that those dozen large antennae act as a single huge antenna, using "phase-arrayed" concept. The antennae are networked together with microwave fiber-optic links—the topic of research in Prof. Lau's group at the time. Prof. Lau worked at JPL (Jet Propulsion Laboratory) to take part in the design and construction of that system (see US patent # 4287606 in "significant patents") while in graduate school at Caltech. |
| Last updated 4/04/08 |