对毫米波和sub 6g进行分析比较matlab代码，有详细的代码注释，值得学习.zip

% 参数设置 num_samples = 1000; % 仿真样本数量 distance = linspace(1, 100, num_samples); % 距离范围 frequency_mmWave = 28e9; % 毫米波频率（28 GHz） frequency_sub6GHz = 2.4e9; % 低于6GHz频率（2.4 GHz） % 系统参数 tx_power = 30; % 发射功率（dBm） antenna_gain = 15; % 天线增益（dB） noise_floor = -90; % 噪声地板（dBm） % 路径损耗模型 path_loss_mmWave_LOS = @(d) 20*log10(d) + 20*log10(frequency_mmWave) + 20*log10(4*pi/3e8); path_loss_mmWave_NLOS = @(d) 35*log10(d) + 20*log10(frequency_mmWave) + 20*log10(4*pi/3e8); path_loss_sub6GHz_LOS = @(d) 20*log10(d) + 20*log10(frequency_sub6GHz) + 20*log10(4*pi/3e8); path_loss_sub6GHz_NLOS = @(d) 35*log10(d) + 20*log10(frequency_sub6GHz) + 20*log10(4*pi/3e8); % 生成路径损耗数据 los_path_loss_mmWave = path_loss_mmWave_LOS(distance); nlos_path_loss_mmWave = path_loss_mmWave_NLOS(distance); los_path_loss_sub6GHz = path_loss_sub6GHz_LOS(distance); nlos_path_loss_sub6GHz = path_loss_sub6GHz_NLOS(distance); % 接收功率计算 rx_power_mmWave_LOS = tx_power + antenna_gain - los_path_loss_mmWave; rx_power_mmWave_NLOS = tx_power + antenna_gain - nlos_path_loss_mmWave; rx_power_sub6GHz_LOS = tx_power + antenna_gain - los_path_loss_sub6GHz; rx_power_sub6GHz_NLOS = tx_power + antenna_gain - nlos_path_loss_sub6GHz; % 信噪比计算 snr_mmWave_LOS = rx_power_mmWave_LOS - noise_floor; snr_mmWave_NLOS = rx_power_mmWave_NLOS - noise_floor; snr_sub6GHz_LOS = rx_power_sub6GHz_LOS - noise_floor; snr_sub6GHz_NLOS = rx_power_sub6GHz_NLOS - noise_floor; % 绘制结果 figure; subplot(2, 1, 1); plot(distance, rx_power_mmWave_LOS, 'r-', 'LineWidth', 2, 'DisplayName', 'Rx Power (LOS, mmWave)'); hold on; plot(distance, rx_power_mmWave_NLOS, 'b--', 'LineWidth', 2, 'DisplayName', 'Rx Power (NLOS, mmWave)'); plot(distance, rx_power_sub6GHz_LOS, 'g-', 'LineWidth', 2, 'DisplayName', 'Rx Power (LOS, Sub-6GHz)'); plot(distance, rx_power_sub6GHz_NLOS, 'm--', 'LineWidth', 2, 'DisplayName', 'Rx Power (NLOS, Sub-6GHz)'); xlabel('距离（米）'); ylabel('接收功率（dBm）'); title('接收功率 vs 距离'); legend('Location', 'Best'); grid on; subplot(2, 1, 2); plot(distance, snr_mmWave_LOS, 'r-', 'LineWidth', 2, 'DisplayName', 'SNR (LOS, mmWave)'); hold on; plot(distance, snr_mmWave_NLOS, 'b--', 'LineWidth', 2, 'DisplayName', 'SNR (NLOS, mmWave)'); plot(distance, snr_sub6GHz_LOS, 'g-', 'LineWidth', 2, 'DisplayName', 'SNR (LOS, Sub-6GHz)'); plot(distance, snr_sub6GHz_NLOS, 'm--', 'LineWidth', 2, 'DisplayName', 'SNR (NLOS, Sub-6GHz)'); xlabel('距离（米）'); ylabel('信噪比（dB）'); title('信噪比 vs 距离'); legend('Location', 'Best'); grid on;