Communications technology for unattended sensors
The objective was designing and demonstrating proof-of-concept communication subsystems for use in unattended sensors. These designs investigated current, advanced technology for frequency synthesis and control, and the use of commercial, highly integrated radio frequency components. The three following subsystems were evaluated: (1) a synthesized (225--400 MHz) exciter/transmitter, (2) a wideband, 100-W, radio-frequency power amplifier (for boosting the level of the exciter/transmitter output), and (3) and a command receiver operating in the 240--270-MHz satellite communication band. These subsystems were integrated into a prototype sensor system. Software was written using the Lawrence Livermore National Laboratory`s Modular Intelligent Sensor System (MISS) specification for microprocessor control of these communication elements. Operation of the sensor system using these subsystems was demonstrated.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 10118289
- Report Number(s):
- UCRL-ID-114079; ON: DE94005685; TRN: AHC29403%%75
- Resource Relation:
- Other Information: PBD: Aug 1993
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
47 OTHER INSTRUMENTATION
42 ENGINEERING
MONITORS
DATA TRANSMISSION
DATA TRANSMISSION SYSTEMS
DESIGN
DEMONSTRATION PROGRAMS
RADIO EQUIPMENT
POWER AMPLIFIERS
COMPUTERIZED CONTROL SYSTEMS
REMOTE AREAS
EXPERIMENTAL DATA
350300
440800
426000
VERIFICATION
MISCELLANEOUS INSTRUMENTATION
COMPONENTS
ELECTRON DEVICES AND CIRCUITS