Index exceeds the number of array elements. Index must not exceed 8.

2 次查看（过去 30 天）
Prapthi
Prapthi 2023-2-3
回答： Swaraj 2023-2-10
function [dets_cluster] = clustering(dets,N_vfft,veloc_bin_norm,dis_thrs,rng_grid,agl_grid)
dets_cluster = [];
dets_num = size(dets, 1);
flag = zeros(1, dets_num); % for clusterng
[~, I] = sort(dets(:,4), 'descend');
for idx = 1:dets_num
% check the flag of current elemnt, if 1, skip comparing
if flag(I(idx))
continue
end
range_bin = dets(I(idx), 1);
veloc_bin = dets(I(idx), 2);
angle_bin = dets(I(idx), 3);
cur_det = dets(I(idx),:);
n_incluster = 1;
% check if the near point is within certain distance threshold of
% current element
for idx_nxt = idx+1:dets_num
if flag(I(idx_nxt))
continue
end
range_bin_diff = dets(I(idx_nxt), 1) - range_bin;
veloc_bin_diff = dets(I(idx_nxt), 2) - veloc_bin;
angle_bin_diff = dets(I(idx_nxt), 3) - angle_bin;
% wrap veloc_bin_diff around half Velocity FFT poiints
if abs(veloc_bin_diff) > N_vfft/2
veloc_bin_diff = N_vfft - abs(veloc_bin_diff);
end
if abs(range_bin_diff)<=dis_thrs(1) && abs(veloc_bin_diff/veloc_bin_norm)<=dis_thrs(2) ...
&& abs(angle_bin_diff)<=dis_thrs(3)
flag(I(idx_nxt)) = 1;
% update the location (range+angle) of center point
cur_det(1) = cur_det(1) + dets(I(idx_nxt), 1);
cur_det(3) = cur_det(3) + dets(I(idx_nxt), 3);
n_incluster = n_incluster + 1;
end
end
% update the flag of current element, and add it to the det_clustering
flag(I(idx)) = 1;
cur_det(1) = round(cur_det(1)/n_incluster);
cur_det(3) = round(cur_det(3)/n_incluster);
cur_det(5) = rng_grid(cur_det(1));
cur_det(7) = agl_grid(cur_det(3));
dets_cluster = [dets_cluster; cur_det];
end
I'm getting error in 49th line
Error in clustering (line 49)
cur_det(7) = agl_grid(cur_det(3));
Please help me to find this......
  3 个评论
显示 1更早的评论
Dyuman Joshi
Dyuman Joshi 2023-2-3
How can you call the 66th element of a matrix which only has 8 elements?
I suggest you can your code again and verify it is according to what you want to do.

请先登录，再进行评论。

请先登录，再回答此问题。

回答（1 个）

Swaraj
Swaraj 2023-2-10
To handle this error, you should better add proper checks as the function is getting agl_grid as input.
For eg. For the statement : cur_det(7) = agl_grid(cur_det(3));
You can add following conditions.
if cur_det(3) <= length(agl_grid)
cur_det(7) = agl_grid(cur_det(3));
else
% Add some code to handle this case
end

类别

在 Help Center 和 File Exchange 中查找有关 Direction of Arrival Estimation 的更多信息

标签

产品

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by