Signal transmission method based on binary phase shift keying modulation and orthogonal frequency division multiplexing
Patent Information
- Authority / Receiving Office
- CN · China
- Current Assignee / Owner
- ZHUHAI ZHONGHUI MICROELECTRONICS
- Publication Date
- 2018-12-21
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
technical field
[0001] The invention belongs to the technical field of communication, and in particular relates to a signal transmission method combining binary phase shift keying modulation technology and orthogonal frequency division multiplexing technology. Background technique
[0002] Orthogonal Frequency Division Multiplexing (OFDM for short) is one of Multi Carrier Modulation (MCM for short) technologies. OFDM is widely used in the field of broadband wireless communication because of its high spectrum utilization rate and strong anti-multipath ability. OFDM divides the channel into several orthogonal sub-channels, converts high-speed data signals into parallel low-speed sub-data streams, and then modulates them onto each sub-channel for transmission. Orthogonal signals are separated by correlation techniques at the receiving end, thereby reducing mutual interference between sub-channels. Since the signal bandwidth on each sub-channel is smaller than the bandwidth of...