NASA-LLIS-1390
Lessons Learned – Test Telecommunications Links End-to-End, and Don't Forget the Doppler (2000)
active, Most Current
| Organization: | NASA |
| Publication Date: | 12 January 2004 |
| Status: | active |
| Page Count: | 3 |
scope:
Abstract:
A mission-critical error was discovered in the communications link between the Cassini spacecraft and its Huygens probe when it was determined that the radio frequencies would not adjust for Doppler effect. This parameter was not isolated during the pre-launch verification process. The recommendations affirm the need for (1) end-to-end testing of communications links, (2) a high fidelity telecommunications testbed, and (3) referencing Doppler effects on subcarriers in an appropriate procedure.
Document History
NASA-LLIS-1390
January 12, 2004
Lessons Learned – Test Telecommunications Links End-to-End, and Don't Forget the Doppler (2000)
Abstract:
A mission-critical error was discovered in the communications link between the Cassini spacecraft and its Huygens probe when it was determined that the radio frequencies would not adjust...
References
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