forwardPresetConfig = evdoForwardReferenceChannels (“巴- 5120 - 2 - 64”10);forwardPresetWaveform = evdoForwardWaveformGenerator (forwardPresetConfig);reversePresetConfig = evdoReverseReferenceChannels (“rel0 - 38400”10);reversePresetWaveform = evdoReverseWaveformGenerator (reversePresetConfig);

创建顶级波形参数:fManualConfig。释放=“RevisionA”；% 'Release0'或'RevisionA'fManualConfig。PNOffset = 0;%基站的PN偏移量fManualConfig。IdleSlotsWithControl =“关闭”；fManualConfig。EnableControl =“上”；fManualConfig。OversamplingRatio = 4;% Upsampling因素fManualConfig。FilterType =“cdma2000Long”；% Filter coefficients: 'cdma2000Long'， 'cdma2000Short'， 'Custom' or 'Off'fManualConfig。InvertQ =“关闭”；对想象的输出求负fManualConfig。EnableModulation =“关闭”；%使调制fManualConfig。ModulationFrequency = 0;调制频率(Hz)fManualConfig。NumChips = 41600;%波形中的芯片数%为数据包创建一个输入消息源:pds。MACIndex = 0;与数据相关的MAC索引pds。数据源= {“PN9”1};%输入消息:{'PNX'， Seed}或数字向量pds。EnableCoding =“上”；启用信道编码fManualConfig。PacketDataSources = pds;将数据源规范添加到波形配置中%创建一个包:fPacket。MACIndex = 0;与此数据包相关的MAC索引fPacket。PacketSize = 5120;%数据包大小:128、256、512、1024、2048、4096或5120位fPacket。NumSlots = 2;%槽数:1、2、4、8、16fPacket。PreambleLength = 64;%前导长度:64、128、256、512或1024个芯片%创建一个10个包的序列:fManualConfig。PacketSequence = repmat(fPacket, 1,10);%生成波形:forwardManualWaveform = evdoForwardWaveformGenerator (fManualConfig);%演示以上两种参数化方法是等价的:如果(isequal (forwardPresetConfig fManualConfig) disp (['配置结构生成与没有'.．.'evdoForwardReferenceChannels功能是相同的。']）;结束

创建顶级波形参数:rManualConfig。释放=“Release0”；% 'Release0'或'RevisionA'rManualConfig。LongCodeMaskI = 0;% I通道的初始长码掩码rManualConfig。LongCodeMaskQ = 0;% Q通道的初始长码掩码rManualConfig。OversamplingRatio = 4;% Upsampling因素rManualConfig。FilterType =“cdma2000Long”；% Filter coefficients: 'cdma2000Long'， 'cdma2000Short'， 'Custom' or 'Off'rManualConfig。InvertQ =“关闭”；对想象的输出求负rManualConfig。EnableModulation =“关闭”；%使调制rManualConfig。ModulationFrequency = 0;调制频率(Hz)rManualConfig。NumChips = 327680;%波形中的芯片数%创建一个包:rPacket。权力= 0;相对信道功率(dBW)rPacket。数据源= {“PN9”1};%输入消息:{'PNX'， Seed}或数字向量rPacket。EnableCoding =“上”；启用信道编码rPacket。DataRate = 38400;数据速率(bps)%创建一个10个包的序列:rManualConfig。PacketSequence = repmat(rPacket, 1,10);%添加一个先导通道:pich。使=“上”；%启用导频通道pich。权力= 0;相对信道功率(dBW)pich。数据源= {“PN9”1};%输入消息:{'PNX'， Seed}或数字向量pich。EnableCoding =“上”；启用信道编码rManualConfig。PilotChannel = pich;将通道添加到波形配置中%添加一个ACK通道，但不启用它:课时。使=“关闭”；%不启用ack通道课时。权力= 0;相对信道功率(dBW)课时。数据源= {“PN9”1};%输入消息:{'PNX'， Seed}或数字向量rManualConfig。ACKChannel =哦;将禁用通道规格添加到波形配置中%生成波形:reverseManualWaveform = evdoReverseWaveformGenerator (rManualConfig);%演示以上两种参数化方法是等价的:如果(isequal (reversePresetConfig rManualConfig) disp (['配置结构生成与没有'.．.'evdoForwardReferenceChannels功能是相同的。']）;结束

如果(isequal (forwardPresetWaveform forwardManualWaveform) disp ([“有和没有产生的正向波形”.．.'evdoForwardReferenceChannels功能是相同的。']）;结束

如果(isequal (reversePresetWaveform reverseManualWaveform) disp ([“有和没有产生的反向波形”.．.'evdoReverseReferenceChannels功能是相同的。']）;结束

rManualConfig2 = rManualConfig;rPacket。权力= -10;相对信道功率(dBW)rPacket。数据源= {“PN23”1};%输入消息:{'PNX'， Seed}或数字向量rPacket。EnableCoding =“关闭”；启用信道编码rPacket。DataRate = 38400;数据速率(bps)rManualConfig2。PacketSequence = repmat(rPacket, 1,10);%重新生成包含自定义的波形:reverseManualWaveform2 = evdoReverseWaveformGenerator (rManualConfig2);

chiprate = 1.2288 e6;基带波形(SR1)芯片率%spectrumPlot = dsp。简介(“SampleRate”chiprate * fManualConfig.OversamplingRatio);spectrumPlot。Title =“正向1xEV-DO波形的频谱”；spectrumPlot。YLimits = (-180, 40);spectrumPlot (forwardManualWaveform);

spectrumPlot2 = dsp。简介(“SampleRate”chiprate * rManualConfig.OversamplingRatio);spectrumPlot2。Title =“反向1xEV-DO波形的频谱”；spectrumPlot2。YLimits = (-180, 40);spectrumPlot2 (reverseManualWaveform2);