Add Radar simulation

2024-01-27 20:58:23 +08:00
parent c2e23b4fbf
commit ec0f95c639
12 changed files with 336 additions and 0 deletions
@@ -0,0 +1,49 @@
+function s_R = get_reflect_pulse(s_T)
+
+    config_parameters;
+
+    s_R = complex(zeros(1, len));
+    real_s_R = zeros(1, len);
+    imag_s_R = zeros(1, len);
+
+    for t_idx = 1:len
+        t = range_t(t_idx);
+
+        p = rem(t, T_r);
+
+        if (p > T_p)
+            continue
+        end
+
+        n = (t - p) / T_r;
+        t_diff = 2 * (r_0 + velocity * n * T_r) / c;
+
+        new_t_idx = floor((t + t_diff) / delta_t);
+
+        if new_t_idx > len
+            continue;
+        end
+
+        s_R(new_t_idx) = scatter_coef * s_T(t_idx);
+    end
+
+    real_s_R = real(s_R);
+    imag_s_R = imag(s_R);
+
+    if figure_flag_2
+        figure(2)
+        title("Received signal")
+        subplot(2, 1, 1);
+        plot(range_t, imag_s_R);
+        xlabel("Time (s)");
+        ylabel("sin(\omega t)");
+        ylim([-1, 1]);
+
+        subplot(2, 1, 2);
+        plot(range_t, real_s_R);
+        xlabel("Time (s)");
+        ylabel("cos(\omega t)");
+        ylim([-1, 1]);
+    end
+
+end