发明名称 |
PROCEDIMIENTO PARA LA MULTIFLEXACION DE FRECUENCIA (FDM) DE UNA BANDA LATERAL UNICA (SSB) DE UNA SENAL DE MULTIFLEXACION POR DIVISION DE TIEMPO. |
摘要 |
<p>A method and apparatus disclosed in the invention are effective to carry out the (SSB) frequency multiplexing and demultiplexing of N base band sampled signals by purely digital processing. On the multiplexing path the apparatus comprises a time invariant single filter having a single input and only one output. At said unique filter input the N signals to be multiplexed are applied which are in form a single signal that is the time multiplexing of said N signals. The signal at the filter output is sent to a successive modulator which is a multiplier having a time varying multiplying coefficient. The real samples of the modulator output signal provide the SSB frequency multiplexed signal of the N incoming signal paths.</p> |
申请公布号 |
ES523498(D0) |
申请公布日期 |
1984.11.01 |
申请号 |
ES19980005234 |
申请日期 |
1983.06.22 |
申请人 |
TELETTRA - TELEFONIA ELETTRONICA E RADIO S.P.A. |
发明人 |
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分类号 |
H04J1/05;H04J4/00;(IPC1-7):04J1/02;04J4/00 |
主分类号 |
H04J1/05 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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