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valeoai / carrada_dataset

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RAD tensor size #2

Closed previlige666 closed 3 years ago

previlige666 commented 3 years ago

hi! i download the database named Caradar_RAD. i found the .npy data'size is 256x256x64. i can understand 256x64 represent rangedoppler, but what about the other 256? in your view,it is angle but angle channel is nearly 8 (2T4R) 、12(3T4R) before fft. is angle fft is 256fft??? i would appreciate it if you reply it

ArthurOuaknine commented 3 years ago

Hello. I apologise for the late answer. The dimensions of the RAD tensors are rangeXangleXdoppler, corresponding to 256x256x64. The angle dimension is indeed 256 after the FFT, there are redundant information in this dimension but it has been processed this way during the recordings. I hope it will help.