where is the wrong this code!

1 次查看（过去 30 天）
Akash Barua
Akash Barua 2023-1-30
回答： Cris LaPierre 2023-1-30
Ran in:
where is the wrong in this code.i can't run this code
clear; clc;
% Modulation schemes to compare
modulations = {'BPSK', 'QPSK', '8-PSK', '16-QAM', '64-QAM'};
% Transmit power and data rate
P_t = 0.1; % W
R = 100e6; % bps
% Extinction coefficient
c = 0.15; % m^-1
% PIN PD parameters
eta = 0.82;
fc = 300e6; % Hz
% Rx parameters
d = 0.2; % m
f = 0.25; % m
fov = 0.69;
% BER calculation
for i = 1:length(modulations)
modulation = modulations{i};
% Assume ideal receiver for simplicity
[~, ber(i)] = berawgn(modulation, R, P_t);
end
Error using berawgn
EbNo must be a real vector.
% Plot BER results
semilogy(1:length(modulations), ber, '-o');
xlabel('Modulation');
ylabel('BER');
xticks(1:length(modulations));
xticklabels(modulations);
grid on;

请先登录，再回答此问题。

回答（1 个）

Cris LaPierre
Cris LaPierre 2023-1-30
The first input to berawgn must be a scalar or vector. Your first input is a character vector that seems to what is expected as the second input (modtype).
ber = berawgn(EbNo,modtype,M)
The first input argument, EbNo, is the ratio of bit energy to noise power spectral density in dB (Eb/N0).
Consult the documentation to be sure you are supplying the inputs the function expects.

类别

在 Help Center 和 File Exchange 中查找有关 PHY Components 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by