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Professor EmeritusDepartment of Electrical Engineering and Computer SciencesUniversity of California at Berkeley |
Office:
Phone: 510-642-3214
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The easiest way to reach me is by email:
Administrative Assistant:
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bird's eye view of nasa deep space network |
prof. lau's group at dsn, circa 1995 |
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graduation '96,jpg |
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ABOUT THE PHOTOS: “GRADUATION'96.JPG” 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 to “Deep Space Network” at Mojave Desert in Southern California where a constellation of big antennas (the largest one in the foreground measures 70m in diameter) are used by NASA to track and communicate with unmanned deep space probes. To meet the extreme sensitivity requirement for tracking of and communicating with these spacecrafts venturing to the edge of the solar system or beyond, all antennas are synchronized to a remote precise hydrogen maser clock, enabling the antenna constellation to function as a single giant antenna using “phase-arrayed” concept. The antennas are networked together using microwave fiber-optic links - the topic of research in Prof. Lau's group at the time. Prof. Lau partook in the design and construction of that network at JPL (Jet Laboratory) Propulsion while pursuing his doctoral thesis research at CALTECH. (See US PATENT # 4287606 in U.S. Patent Section in "cv" link on this page.) |
Last updated 2/24/15 |