Method and apparatus for space division multiple access...

H - Electricity – 04 – B

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H04B 7/08 (2006.01) H01Q 3/26 (2006.01) H04B 7/26 (2006.01)

Patent

CA 2426314

Methods and systems consistent with this invention receive a plurality of transmitted in a receiver having a plurality of receive elements, wherein each transmitted signal has a different spatial location. Such methods and systems receive the plurality of transmitted signals at the plurality of receive elements to form a plurality of receive element signals, form a combined signal derived from the plurality of receive element signals, and detect each of the plurality of transmitted signals from the combined signal by its different spatial location. To achieve this, methods and systems consistent with this invention generate a plurality of arbitrary phase modulation signals, and phase modulate each of the plurality of receive element signals with a different one of the phase modulation signals to form a plurality of phase modulated signals. Such methods and systems then combine the plurality of phase modulated signals into a combined signals, generate expected signals, and cross-correlate the combined signal with the expected signals to form correlation signals. Such methods and systems then store the correlation signals in a correlation signal memory and analyze the correlation signals to extract information from the transmitted signals.

L'invention concerne des procédés et des systèmes, selon lesquels un récepteur, doté de plusieurs éléments de réception, reçoit plusieurs signaux émis, chaque signal émis ayant un emplacement spatial différent. Ces procédés et ces systèmes reçoivent aux divers éléments de réception les divers signaux émis pour former divers signaux d'éléments de réception, forment un signal combiné dérivé des divers signaux d'éléments de réception, et détectent chacun des signaux émis à partir du signal combiné par son emplacement spatial différent. Pour atteindre ce but, les présents procédés et systèmes génèrent divers signaux à modulation de phase arbitraire et modulent la phase de chacun des signaux d'éléments de réception avec un signal de modulation de phase différent pour former divers signaux à modulation de phase. Ces procédés et systèmes combinent ensuite les divers signaux à modulation de phase en un signal combiné, génèrent des signaux attendus, et procèdent à une inter-corrélation du signal combiné avec les signaux attendus pour former des signaux de corrélation. Ces procédés et systèmes stockent ensuite les signaux de corrélation dans une mémoire de signaux de corrélation et analysent les signaux de corrélation afin d'extraire des informations des signaux émis.

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