Can someone help me? - Plotting complex number with index

조회 수: 4 (최근 30일)
adriane duarte
adriane duarte 2021년 5월 26일
댓글: Sulaymon Eshkabilov 2021년 5월 27일
I plotted complex numbers as follows:
and I got some complex numbers, like for example:
result plot:
how do I put the corresponding bit values (1000,1100, ...) according to the example below???
Can someone help me?

채택된 답변

Sulaymon Eshkabilov
Sulaymon Eshkabilov 2021년 5월 27일
Hi,
Here is the answer to convert imaginary and real numbers from a floating point format into binary:
N = 16; % Number bits for integer part:
M = 25; % Number bits for fraction part:
% Conversion from floating point format into binary number
%% REAL Part:
for ii=1:numel(q_real)
BIN1(ii,:) = fix(rem(q_real(ii)*pow2(-(N-1):M),2));
% Test the inverse transformation
DEC1(ii) = BIN1(ii,:)*pow2(n-1:-1:-m).';
end
%% IMAG Part:
for ii=1:numel(q_imag)
BIN2(ii,:) = fix(rem(q_imag(ii)*pow2(-(N-1):M),2));
% Test the inverse transformation
DEC2(ii) = BIN2(ii,:)*pow2(n-1:-1:-m).';
end
Good luck.

추가 답변 (1개)

Sulaymon Eshkabilov
Sulaymon Eshkabilov 2021년 5월 26일
  댓글 수: 4
adriane duarte
adriane duarte 2021년 5월 26일
편집: adriane duarte 2021년 5월 26일
L = 1e4; % number of bits
SNRdB = 0:28;
max_run = 100;
alpha = 0.3;
for sk = 1:length(SNRdB)
for tk = 1:max_run
% 1 ou -1 para sinal em fase (an)
x_inp_I = sign(rand(1,L)- 0.5);
% 1 ou -1 para sinal de quadratura (bn)
x_inp_Q = sign(rand(1,L)- 0.5);
% Gera bits de marca d'água aleatórios (dI)
Bit_wat_I = sign(rand(1,L)- 0.5);
% Gera bits de marca d'água aleatórios (dQ)
Bit_wat_Q = sign(rand(1,L)- 0.5);
for k = 1:L
if Bit_wat_I(k) == 1 && Bit_wat_Q(k) == 1
Bit_enviado(k) = (x_inp_I(k) .* ((sqrt(1-alpha)) + (sqrt(alpha)))) + (1i .* x_inp_Q(k) * ((sqrt(1-alpha)) + (sqrt(alpha))));
end
end
end
end
q_real = real(Bit_enviado);
q_imag = imag(Bit_enviado);

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