Citation
Abstract
A signal sampling system, used for the Deep Space Network Venus two-station radar experiment, intended to demonstrate hydrogen maser compatibility in twostation spacecraft tracking with planetary round trip times, has been implemented. One sampling channel is described in detail. Four such channels, one for the sine and one for the cosine signal from each of two antennas, are used in the demonstration interferometer system. Each channel contains two multiplexed subchannels, and each subchannel consists of an integrating circuit, a track-and-hold circuit, and an analog-to-digital converter. All components of the subchannels are multiplexed and the output is derived from a digital multiplexing circuit which puts out digital data in parallel to line drivers for computer connection. Part of the four-channel system, a special-purpose test and calibration system, is also described.
Details
- Volume
- XII
- Published
- December 15, 1972
- Pages
- 112–123
- File Size
- 756.7 KB