Invention Grant
US09148311B2 Determining responses of rapidly varying MIMO-OFDM communication channels using observation scalars
有权
使用观测标量确定快速变化的MIMO-OFDM通信信道的响应
- Patent Title: Determining responses of rapidly varying MIMO-OFDM communication channels using observation scalars
- Patent Title (中): 使用观测标量确定快速变化的MIMO-OFDM通信信道的响应
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Application No.: US13284879Application Date: 2011-10-29
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Publication No.: US09148311B2Publication Date: 2015-09-29
- Inventor: Muralidhar Karthik , George A. Vlantis
- Applicant: Muralidhar Karthik , George A. Vlantis
- Applicant Address: US TX Coppell SG Singapore
- Assignee: STMICROELECTRONICS, INC.,STMICROELECTRONICS ASIA PACIFIC PTE. LTD.
- Current Assignee: STMICROELECTRONICS, INC.,STMICROELECTRONICS ASIA PACIFIC PTE. LTD.
- Current Assignee Address: US TX Coppell SG Singapore
- Agency: Allen, Dyer, Doppelt, Milbrath & Gilchrist, P.A.
- Main IPC: H04K1/10
- IPC: H04K1/10 ; H04L25/02 ; H04L25/03 ; H04L27/26

Abstract:
In an embodiment, a channel estimator includes first, second, and third stages. The first stage is configurable to generate a first observation scalar for a first communication path of a first communication channel, and the second stage is configurable to generate a second observation scalar for a first communication path of a second communication channel. And the third stage is configurable to generate channel-estimation coefficients in response to the first and second observation scalars. For example, such a channel estimator may use a recursive algorithm, such as a Vector State Scalar Observation (VSSO) Kalman algorithm, to estimate the responses of channels over which propagate simultaneous orthogonal-frequency-division-multiplexed (OFDM) signals (e.g., MIMO-OFDM signals) that suffer from inter-carrier interference (ICI) due to Doppler spread. Such a channel estimator may estimate the channel responses more accurately, more efficiently, with a less-complex algorithm, and with less-complex software or circuitry, than conventional channel estimators.
Public/Granted literature
- US20120114080A1 DETERMINING RESPONSES OF RAPIDLY VARYING MIMO-OFDM COMMUNICATION CHANNELS USING OBSERVATION SCALARS Public/Granted day:2012-05-10
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