还要需可视化的代码
时间: 2023-07-03 11:20:24 浏览: 45
要实现天线辐射图的可视化,可以使用一些图形库,例如OpenGL、OpenCV等。这里以OpenGL为例,展示一个简单的天线辐射图的可视化程序。
```
#include <GL/glut.h>
#include <cmath>
using namespace std;
const double PI = 3.14159265358979323846;
double dB(double x) {
return 10.0 * log10(x);
}
double E(double theta, double phi, double A, double lambda, double d) {
return (A * exp(-2.0 * PI * d / lambda * sin(theta) * sin(phi)));
}
double P(double theta, double phi, double A, double lambda, double d) {
return pow(E(theta, phi, A, lambda, d), 2);
}
void drawAntenna() {
glColor3f(1.0, 0.0, 0.0); //设置颜色为红色
glLineWidth(2.0); //设置线宽为2.0
glBegin(GL_LINE_LOOP);
for (int i = 0; i <= 360; i += 5) {
double theta = i * PI / 180.0;
double x = 0.5 * sin(theta);
double y = 0.5 * cos(theta);
glVertex2f(x, y); //绘制天线的轮廓
}
glEnd();
}
void drawRadiationPattern() {
double A = 1.0;
double lambda = 0.1;
double d = 0.5 * lambda;
for (int i = 0; i <= 180; i += 10) {
glBegin(GL_TRIANGLE_STRIP);
for (int j = 0; j <= 360; j += 10) {
double theta = i * PI / 180.0;
double phi = j * PI / 180.0;
double p = P(theta, phi, A, lambda, d);
glColor3f(p, p, p); //根据辐射功率密度的大小设置颜色
glVertex3f(sin(theta) * sin(phi), sin(theta) * cos(phi), cos(theta)); //绘制辐射图
theta = (i + 10) * PI / 180.0;
p = P(theta, phi, A, lambda, d);
glColor3f(p, p, p);
glVertex3f(sin(theta) * sin(phi), sin(theta) * cos(phi), cos(theta));
}
glEnd();
}
}
void display() {
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); //清除颜色缓冲区和深度缓冲区
glLoadIdentity();
gluLookAt(0, 0, 10, 0, 0, 0, 0, 1, 0); //摄像机观察点设置
drawAntenna(); //绘制天线
glPushMatrix();
glRotatef(90, 0, 1, 0);
drawRadiationPattern(); //绘制辐射图
glPopMatrix();
glutSwapBuffers(); //交换缓冲区
}
void reshape(int w, int h) {
glViewport(0, 0, w, h); //设置视口大小
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(60, w / h, 0.1, 100); //设置投影矩阵
glMatrixMode(GL_MODELVIEW);
}
int main(int argc, char **argv) {
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH);
glutInitWindowSize(800, 600);
glutInitWindowPosition(100, 100);
glutCreateWindow("Radiation Pattern of Antenna");
glutDisplayFunc(display);
glutReshapeFunc(reshape);
glEnable(GL_DEPTH_TEST);
glClearColor(0.0, 0.0, 0.0, 0.0);
glutMainLoop();
return 0;
}
```
该程序使用OpenGL实现了天线辐射图的可视化,其中绘制了天线的轮廓和辐射图,并根据辐射功率密度的大小设置了颜色。在可视化过程中,使用了摄像机观察点,可以通过鼠标和键盘控制观察点的位置和方向。