function [rxPSDU,bitErrorRate,pktFormat,pktOffset,eqSymPlot,Jam_pos,feedback_data,evm,errorMessage] = RX_function(rx,userIdx,cfgUI,SEED)

cfgRx = wlanHERecoveryConfig;
cfgRx.ChannelBandwidth = cfgUI.ChannelBandwidth;
ind = wlanFieldIndices(cfgRx);
% 初始化，以防后续没有赋值--3.26
rxPSDU = [];
feedback_data = struct();
feedback_data.staFeedback = [];
feedback_data.PDP = [];
feedback_data.rmsDelay = 0;
feedback_data.DopplerShift = 0;
feedback_data.rssi = 0;
feedback_data.SNR = 0;
feedback_data.JamType = '';
feedback_data.JamData = [];

frameIdx = 1;
bitErrorRate = [];
eqSymPlot = [];
Jam_pos = [];
pktFormat = '';
pktOffset = 0;
evm = 0;

try
[Type,jam_data,Jam_pos] = SpectrumSense(rx,cfgUI);      % 进行频谱检测

rxWaveLen = size(rx,1); 
pktOffset = wlanPacketDetect(rx,cfgRx.ChannelBandwidth);% 检测是否有帧到来
% Adjust packet offset
if isempty(pktOffset) || (pktOffset + ind.LSIG(2) > rxWaveLen)
    feedback_stat = 0;
else
    feedback_stat = 1;
end

if feedback_stat==1 
    % 前端处理
    [rx,pktOffset,gain] = rxFrontEnd(rx,pktOffset,ind,cfgRx);  
    % 判断接收数据的包格式
    [cfgRx,~,ind] = pktFormatDetect(ind,pktOffset,rx,cfgRx);
    %-------0324-----临时判断是nonHT还是HE-----------
    if ~isfield(ind,'HEData')
        pktFormat = 'non-HT';
        fprintf('%s packet detected\n\n',pktFormat);        
        [rxPSDU,bitErrorRate,eqSymPlot]=heSUspecial(rx,cfgRx,userIdx,frameIdx,rxPSDU,cfgUI,SEED,bitErrorRate,eqSymPlot);       

    else
    pktFormat = cfgRx.PacketFormat;
    fprintf('%s packet detected\n\n',pktFormat);
    % 解数据包
    if strcmp(pktFormat,'HE-SU')
        flag = isDataEmpty(rx,cfgUI); % 判断数据长度是否为0，为0则是NDP
        if flag == 1 % 数据长度为0，说明是NDP
            % *******计算NDP反馈的结果*******
            pktFormat = 'NDP';
            %--------------------------------
            [staFeedback,PDP,rmsDelay,DopplerShift,rssi_dbm,SNR] = RX_NDPCal(rx,cfgUI,ind,pktOffset,gain);
%             feedback_data = struct();
            feedback_data.staFeedback = staFeedback;
            feedback_data.PDP = PDP;
            feedback_data.rmsDelay = rmsDelay;
            feedback_data.DopplerShift = DopplerShift;
            feedback_data.rssi = rssi_dbm;
            feedback_data.SNR = SNR;
            feedback_data.JamType = Type;
            feedback_data.JamData = jam_data;
            save(['TXPackets\NDPfeedback_for_User' num2str(userIdx) '.mat'],'feedback_data');
        elseif flag == 0 % 数据长度不为零，说明是SU数据包
            [rxPSDU,bitErrorRate,eqSymPlot] = heSURx(rx,cfgRx,userIdx,frameIdx,rxPSDU,cfgUI,SEED,bitErrorRate,eqSymPlot);               
        end
    elseif strcmp(pktFormat,'HE-MU')
        [rxPSDU,bitErrorRate,eqSymPlot,evm]=heMURx(rx,cfgRx,userIdx,frameIdx,rxPSDU,cfgUI,SEED,bitErrorRate,eqSymPlot);        
    end
    end
end
rxPSDU = int16(rxPSDU);
bitErrorRate = double(bitErrorRate);
pktOffset = double(pktOffset);
eqSymPlot = double(eqSymPlot);
Jam_pos = double(Jam_pos);
feedback_data.staFeedback = double(feedback_data.staFeedback);
feedback_data.PDP = double(feedback_data.PDP);
feedback_data.DopplerShift = double(feedback_data.DopplerShift);
feedback_data.rssi = double(feedback_data.rssi);
feedback_data.SNR = double(feedback_data.SNR);
feedback_data.JamData = double(feedback_data.JamData);
evm = double(evm);

errorMessage = '';
catch ErrorInfo
    errorMessage = ErrorInfo.message;
end
end