我在 Octave 中的极坐标图方面遇到一些问题。特别是，我制作了一个结合水平和垂直天线方向图的脚本，以获得天线的 3D 天线方向图，从而得到 360x360 元素的矩阵。如果我通过 surf function 绘制矩阵，我会获得该图像，但我想获得天线方向图。我怎样才能做到这一点？
编辑:
theta3D = linspace(0, 2*pi - (2*pi/360), 360);
phi3D = linspace(0, 2*pi - (2*pi/360), 360);
%% from dBm to dB
maxGainVdB = mGVNnA - 30;
maxGainHdB = mGHNnA - 30;
%% from dB to Watt
maxGainVWatt = 10.^(maxGainVdB/10);
maxGainHWatt = 10.^(maxGainHdB/10);
%% normalization
maxGainVWattNorm = maxGainVWatt./max(maxGainVWatt);
maxGainHWattNorm = maxGainHWatt./max(maxGainHWatt);
%% Gv and Gh
Gv = 10*log10(maxGainVWattNorm);
Gh = 10*log10(maxGainHWattNorm);
%% weighting factors
% where "i" is theta and j is phi
for i = 1 : length(phi3D)
for j = 1 : length(theta3D)
w1(i, j) = maxGainVWattNorm(i)*(1 - maxGainHWattNorm(j));
w2(i, j) = maxGainVWattNorm(j)*(1 - maxGainHWattNorm(i));
end
end
%% normalization-related parameter
k = 2; %% As indicated in Chapter 2
%% estimated G
for i = 1 : length(phi3D)
for j = 1 : length(theta3D)
estG(i, j) = ((Gh(i)*w1(i,j) + Gv(j)*w2(i,j))/((w1(i,j)^k + w2(i,j)^k))^(1/k));
end
end
figure
[X, Y] = meshgrid (theta3D, phi3D);
surf(X,Y,estG)
数据
mGHNnA = [0.0762 0.0976 0.1207 0.146 0.1744 0.2066 0.2428 0.2827 0.3256 0.3705 0.4165 0.4631 0.5107 0.5602 0.6129 0.6704 0.7334 0.8021 0.8754 0.9518 1.0294 1.1067 1.1834 1.2608 1.3419 1.4318 1.5376 1.6653 1.8213 2.011 2.2382 2.5046 2.8096 3.1494 3.5171 3.8976 4.2687 4.6021 4.8717 5.0727 5.201 5.2687 5.2965 5.3066 5.3189 5.3365 5.3865 5.4558 5.5635 5.7028 5.8633 6.0489 6.2538 6.4708 6.6929 6.914 7.1293 7.3344 7.5209 7.6879 7.8455 7.9974 8.1362 8.2677 8.4072 8.547 8.6955 8.8539 9.025 9.21 9.4099 9.6251 9.8558 10.102 10.362 10.636 10.924 11.224 11.536 11.858 12.189 12.528 12.875 13.229 13.59 13.954 14.323 14.696 15.071 15.447 16.203 16.58 17.089 17.593 18.093 18.588 19.077 19.56 20.036 20.506 20.969 21.424 21.861 22.278 22.683 23.081 23.47 23.856 24.235 24.609 24.98 25.344 25.698 26.037 26.347 26.622 26.87 27.09 27.289 27.459 27.601 27.729 27.849 27.962 28.068 28.158 28.244 28.282 28.272 28.233 28.204 28.181 28.182 28.2 28.21 28.203 28.206 28.181 28.185 28.238 28.346 28.526 28.794 29.158 29.616 30.155 30.753 31.375 31.988 32.556 33.032 33.32 33.435 33.452 33.476 33.597 33.831 34.167 34.581 35.047 35.48 35.784 36.026 36.134 35.959 35.742 35.544 35.466 35.575 35.746 35.995 36.162 36.19 36.11 35.912 35.695 35.529 35.417 35.401 35.464 35.467 35.622 35.747 35.773 35.787 35.827 35.802 35.722 35.596 35.544 35.59 35.687 35.784 35.857 35.867 35.804 35.679 35.462 35.131 34.68 34.179 33.68 33.231 32.833 32.532 32.326 32.18 32.035 31.752 31.265 30.628 29.95 29.221 28.526 27.919 27.419 27.03 26.737 26.542 26.415 26.341 26.301 26.269 26.241 26.212 26.179 26.143 26.102 26.051 25.983 25.892 25.795 25.707 25.636 25.584 25.542 25.502 25.464 25.424 25.362 25.269 25.156 25.013 24.827 24.604 24.343 24.042 23.713 23.361 22.998 22.62 22.229 21.827 21.418 21.004 20.587 20.156 19.72 19.278 18.833 18.385 17.934 17.478 17.018 16.555 16.086 15.614 15.138 14.658 14.175 13.689 13.336 12.982 12.629 12.277 11.926 11.577 11.23 10.887 10.549 10.215 9.8873 9.5665 9.2535 8.9474 8.6508 8.3601 8.0783 7.8076 7.5485 7.2995 7.0654 6.8356 6.6223 6.418 6.2237 6.0401 5.8621 5.6946 5.5356 5.384 5.2382 5.0961 4.9558 4.8113 4.6579 4.5018 4.3427 4.182 4.022 3.8609 3.7051 3.5585 3.4213 3.2873 3.1583 3.032 2.9015 2.7555 2.6037 2.4462 2.284 2.1188 1.9533 1.7903 1.6325 1.4827 1.3435 1.209 1.0844 0.9762 0.8832 0.7952 0.7224 0.6616 0.609 0.5607 0.5128 0.4625 0.4103 0.3567 0.3033 0.2521 0.2051 0.164 0.1295 0.1013 0.0786 0.06 0.0442 0.0304 0.0182 0.0083 0.0019 0 0.0035 0.0125 0.0242 0.0388 0.0564]
和
mGVNnA = [ 1.7 1.1099 0.7069 0.4755 0.2901 0.1465 0.0475 0 0.0014 0.0449 0.1292 0.2868 0.4673 0.7364 1.2223 1.9732 3.0173 4.3603 5.9631 7.7179 9.5019 9.832 8.9113 8.2694 8.0057 8.1343 8.6399 9.5171 10.742 12.285 14.065 16.092 18.473 21.416 25.15 27.353 27.395 26.174 23.967 21.86 20.131 18.734 17.599 16.638 15.887 15.369 15.082 15.024 15.211 15.606 16.196 16.958 17.868 18.867 20 20.151 19.842 19.695 19.725 19.787 19.905 20.082 20.265 20.432 20.595 20.789 21.013 21.281 21.623 22.058 22.536 23.101 23.715 24.38 25.113 25.898 26.737 27.595 28.478 29.381 30.284 31.155 31.971 32.721 33.389 33.969 34.473 34.88 35.237 35.563 35.885 36.251 36.805 37.442 38.143 38.785 39.282 39.452 39.252 38.808 38.293 37.764 37.253 36.773 36.34 35.953 35.634 35.368 35.192 35.093 35.087 35.161 35.305 35.638 35.968 36.19 36.22 36.098 35.797 35.382 35.001 34.788 34.768 34.921 35.411 36.172 36.807 36.485 36.261 35.984 35.618 35.165 34.735 34.498 34.647 35.242 36.268 37.584 38.828 39.695 40.087 40.283 40.635 41.382 42.64 43.356 41.606 40.07 39.359 39.185 39.081 38.836 38.624 38.456 38.255 38.206 38.493 39.266 40.491 41.983 43.328 42.563 40.545 38.503 37.071 36.429 36.194 36.104 35.836 35.579 35.481 35.506 35.707 35.994 36.07 36.031 36.033 36.214 36.667 37.435 38.147 38.873 39.727 40.902 42.706 43.934 43.635 43.926 44.379 44.797 45.114 45.558 46.371 47.239 49.24 52.957 57.002 55.602 53.712 53.855 57.666 52.999 48.404 45.794 44.523 44.54 44.979 45.826 47.281 48.725 49.537 49.035 47.911 45.782 43.136 40.9 39.415 38.682 38.471 38.664 39.083 39.55 39.89 39.954 39.921 40.111 40.907 41.583 41.361 41.264 40.952 40.156 39.005 37.776 36.579 35.531 34.625 33.843 33.158 32.54 32.059 31.661 31.352 31.117 30.908 30.74 30.578 30.447 30.306 30.141 29.997 29.704 29.318 28.964 28.61 28.262 27.903 27.512 27.083 26.622 26.123 25.592 25.037 24.464 23.88 23.292 22.702 22.114 21.537 20.976 20.433 19.985 19.564 19.172 18.811 18.484 18.191 17.938 17.728 17.566 17.458 17.411 17.431 17.437 16.937 16.486 16.093 15.757 15.479 15.269 15.133 15.062 15.072 15.144 15.254 15.407 15.568 15.726 15.86 15.971 16.077 16.2 16.408 16.719 17.174 17.79 18.611 19.673 21.051 22.834 24.971 27.442 29.851 27.032 24.994 23.406 21.624 20.012 18.602 17.435 16.433 15.668 15.115 14.729 14.47 14.339 14.383 14.654 15.252 16.216 14.91 13.992 13.353 12.978 12.89 13.16 13.841 14.942 16.463 18.341 20.559 23.437 26.905 27.021 23.385 19.308 16.1 13.668 11.801 10.36 9.2831 8.5509 8.1662 8.1298 8.4381 7.8963 6.1559 4.6964 3.4785 2.4834 ]
最佳答案
我不知道您期望哪种极坐标图，但下面的代码可能会帮助您将其作为示例。
- 二维极坐标图
% polar plot for G vs. phi, when theta = pi
polar(phi3D, estG(:,length(theta3D)/2+1));
hold on;
% polar plot for G vs. theta, when phi = pi
polar(theta3D, estG(length(phi3D)/2+1,:));
legend("G vs. phi @(theta=pi)","G vs. theta @(phi=pi)");
title("2D radiation pattern");
hold off;
- 3D极坐标图
[X, Y] = meshgrid (theta3D, phi3D);
surf(X,Y,estG,'LineStyle','none');
xlabel("theta");
ylabel("phi");
zlabel("G");
colormap("jet");
colorbar
关于plot - 如何在 Octave 的极坐标图中绘制天线方向图？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/59266842/