Jiao Xianjun (BH1RXH)'s tech blog - List/列表
goto:
openwifi
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github code
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publications
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- 2026
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Starlink Analysis – Supplement(11):Multiple Access, Duplexing, Beams, Gateway Stations, Phased-Array Interfaces, Subcarriers, Channel Model, and Random Access
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Starlink Analysis – Supplement(10):Discussion of Modems, RF Links, Beams, and Capacity
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Starlink Analysis – Supplement(9):Spectral Efficiency and Satellite Capacity
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Starlink Analysis – Supplement(8):Confirmation of Unique Word (UW) Usage
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Starlink Analysis – Supplement(7):Modulation, Coding, and Bit-Level Processing
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Starlink Analysis – Supplement(6):The Effect of Relativity on OFDM Clock Errors in LEO Communications
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Starlink Analysis – Supplement(5):Pilot Design for LEO Broadband Access Compared with Wi-Fi and Cellular Systems
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Starlink Analysis – Supplement (4):Frame Structure
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Starlink Analysis – Supplement (3):UW Selection, Sampling Rate, Bandwidth, and Configurable Parameters
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Starlink Analysis – Supplement (2): A Hypothesis on the Unique Word (UW)
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Starlink Analysis – Supplement (1): A Unique Modem Design Philosophy
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Starlink uplink signal analysis (6): Discovery of the Pilot Sub-Bands in Patents, and Signal Analysis Techniques for Time-Domain Structure and Modulation Symbols
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Starlink uplink signal analysis (5): Detailed Modulation Structures and Repeated Bit Sequences
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Starlink uplink signal analysis (4): OFDMA and RU allocation
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Starlink uplink signal analysis (3): demodulation is successful
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My PhD Thesis PABT Pilot Assisted Block Transmission
- 2024
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Wi-Fi beamforming explained 3 beam direction control for Uniform Linear Array (ULA)
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Wi-Fi beamforming explained 2 double-slit experiment
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Wi-Fi beamforming explained 1 from single antenna to 2 antennas
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The open-source BTLE (Bluetooth Low Energy) baseband chip design