Update Radar simulation

2024-02-21 16:41:12 +08:00
parent ec0f95c639
commit f357a0c3a7
20 changed files with 219 additions and 187 deletions
@@ -0,0 +1,19 @@
+function [range, range_idx] = get_range(s_T, s_R)
+    global T_r delta_t len c r_0 range_t num_pulse;
+
+    % 只取第一个 T_r 的数据计算
+    range_N = T_r / delta_t;
+    s_T_first = [s_T(1:range_N), zeros(1, len - range_N)];
+    s_R_first = [s_R(1:range_N), zeros(1, len - range_N)];
+
+    s_T_fft = fft(s_T_first, len);
+    s_R_fft = fft(s_R_first, len);
+
+    % 发射信号和回波信号做相关
+    p = ifft(s_R_fft .* conj(s_T_fft));
+    norm_p = real(p).^2 + imag(p).^2;
+    [~, range_idx] = max(norm_p);
+
+    range = range_t(range_idx) * c / 2;
+    fprintf("range = %f, r_0 = %f\n", range, r_0);
+end