Japan's CS (Sakura) communications satellite experiments. VI C. Communications experiments: spread spectrum multiple access
Japan's CS (Sakura) communications satellite experiments. VI C. Communications experiments: spread spectrum multiple access
- New search for: Hamamoto, N.
- New search for: Masamura, T.
- New search for: Hamamoto, N.
- New search for: Masamura, T.
For pt.VI B see ibid., vol.AES-22, no.3, p.272 (1986). The results of direct-sequence spread spectrum multiple access (SSMA) communication experiments using the Japanese Sakura communications satellite are presented. In order to carry out these experiments, three different types of direct-sequence spread spectrum systems were developed. The first is multiplexed spread spectrum random-access (SSRA) equipment which provides complete random access by about 200 simultaneous users. The second is a quadriphase spread spectrum (Q-SS) system. Experimental results confirmed that the initial acquisition time was only about 0.1 s using a CCD matched filter and that the Q-SS technique was effective in reducing intermodulation interferences. The third is a SCOUT system which provides a satellite communications subscriber with automatic connection to the terrestrial telephony network via a satellite telephony switching center. This function was confirmed by a network connection test.
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Japan's CS (Sakura) communications satellite experiments. VI C. Communications experiments: spread spectrum multiple access
Japans CS-(Sakura)-Kommunikationssatellitenexperimente. VI C. Kommunikationsexperimente: Spreizspektrum-Vielfachzugriff
IEEE Transactions on Aerospace and Electronic Systems ; AES-22 , 3 ; 281-290
1986
10 Seiten, 4 Quellen
Article (Journal)
English
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Japan's CS (Sakura) communications satellite experiments. V. Propagation characteristics
| Tema Archive | 1986