Signal Reception

Functions for 802.11™ physical layer reception processing

WLAN Toolbox™ provides functions that synchronize, demodulate, and decode 802.11 waveforms. Use these functions to detect waveform characteristics, estimate and correct for symbol timing offset, estimate and correct for carrier frequency offset, and estimate the channel. The functions also demodulate and recover individual preamble and data fields.

Functions

展开全部

波形检测和同步

`wlanpacketDetect`	Estimate timing offset of OFDM packet
`wlanFormatDetect`	Detect packet format
`wlanSymbolTimingEstimate`	使用l-ltf的精细符号正时估计
`wlanCoarseCFOEstimate`	进行粗糙的CFO估计
`wlanfinecfoestimate`	Perform fine CFO estimation
`wlanSampleRate`	Nominal sample rate
`wlanHETrackPilotError`	使用HE波形的飞行员子载波跟踪错误
`Channeldelay`	Channel timing delay
`frequencyOffset`	Apply frequency offset to input signal

通道估计

`wlanVHTLTFChannelEstimate`	使用VHT-LTF的通道估计
`wlanHTLTFChannelEstimate`	使用HT-LTF的通道估计
`wlanlltfchanneLestimate`	Channel estimation using L-LTF

OFDM Demodulation

`wlanfieldindices`	生成PPDU字段索引
`wlanhedemedulate`	Demodulate fields of HE waveform
`wlanDMGOFDMDemodulate`	DMG波形的解调场
`wlans1gdemodulate`	S1G波形的解调场
`wlanvhtltfdemodulate`	解调VHT-LTF波形
`wlanHTLTFDemodulate`	Demodulate HT-LTF waveform
`wlanLLTFDemodulate`	解调L-LTF波形
`wlannonhtofdmdemedulate`	Demodulate fields of non-HT OFDM waveform
`wlanHEOFDMInfo`	OFDM信息传输
`wlandmgofdminfo`	DMG传输的OFDM信息
`wlanS1GOFDMInfo`	OFDM Information for S1G transmission
`wlanVHTOFDMInfo`	OFDM信息用于VHT传输
`wlanhtofdminfo`	HT传输的OFDM信息
`wlannonhtofdminfo`	OFDM information for non-HT transmission

信号和标头字段处理

`wlanfieldindices`	生成PPDU字段索引
`WlanhesigabitRecover`	在He-Sig-A领域恢复信息位
`wlanHESIGBCommonBitRecover`	Recover common field bits in HE-SIG-B field
`wlanhesigbuserbitRecover`	Recover user field bits in HE-SIG-B field
`wlanHETBNDPFeedbackStatus`	Recover feedback status from HE TB feedback NDP
`wlanLSIGBitRecover`	Recover information bits in L-SIG field
`wlanlsigrecover`	Recover L-SIG information bits
`wlanvhtsigarecover`	恢复vht-sig-a信息位
`wlanVHTSIGBRecover`	Recover VHT-SIG-B information bits
`wlanHTSIGRecover`	Recover HT-SIG information bits
`wlandmgheaderbitrecover`	从DMG标头字段恢复钻头

Data Field Processing

`wlanfieldindices`	生成PPDU字段索引
`wlanInterpretScramblerState`	Recover bandwidth signaling from initial scrambler state
`wlanhedatabitrecover`	Recover bits from HE-Data field
`wlanVHTDataRecover`	Recover bits from VHT-Data field
`wlanhtdatarecover`	Recover bits from HT-Data field
`wlanNonHTDataBitRecover`	从非HT数据字段恢复PSDU
`wlanNonHTDataRecover`	Recover non-HT Data
`wlanDMGDataBitRecover`	从DMG数据字段中恢复位

Bit-Level Processing

`wlanScramble`	Scramble and descramble binary input sequence
`Scramblerrange`	Get scrambler initialization range
`WlanconStellationDemap`	星座拆除
`wlanBCCDeinterleave`	Deinterleave binary convolutionally interleaved input
`wlanStreamDeparse`	Stream-deparse spatial streams
`wlansegnseggendeparsebits`	Segment-deparse data bits
`wlanSegmentParseSymbols`	段 - 帕斯数据子载波
`wlanBCCDecode`	卷积解码输入数据
`wlangolay序列`	创erate Golay sequence