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import os
from typing import List
import torch
from loader import CsiDataloader, DataType
from model import DenoisingNetModel
from train import Train
from utils import DenoisingMethod, draw_line, conj_t
from utils import DenoisingMethodLS
from utils import DenoisingMethodMMSE
from utils import DenoisingMethodModel
import utils.config as config
use_gpu = True and config.USE_GPU
config.USE_GPU = use_gpu
def analysis_denoising(csi_dataloader: CsiDataloader, denoising_method_list: List[DenoisingMethod], snr_start, snr_end,
snr_step=1):
nmse_list = [[] for _ in range(len(denoising_method_list))]
x = csi_dataloader.get_pilot_x()
h = csi_dataloader.get_h(DataType.test)
rhh = (conj_t(h) @ h).mean(0).mean(0)
hx = h @ x
for snr in range(snr_start, snr_end, snr_step):
n, var = csi_dataloader.noise_snr_range(hx, [snr, snr + 1], one_col=False)
y = hx + n
for i in range(len(denoising_method_list)):
nmse = denoising_method_list[i].get_nmse(y, h, x, var, rhh)
nmse_list[i].append(nmse)
nmse_k_v = {}
for i in range(len(nmse_list)):
nmse_k_v[denoising_method_list[i].get_key_name()] = nmse_list[i]
return nmse_k_v, list(range(snr_start, snr_end, snr_step))
if __name__ == '__main__':
import logging
logging.basicConfig(level=20, format='%(asctime)s-%(levelname)s-%(message)s')
# csi_dataloader = CsiDataloader('data/3gpp_16_16_64_100_10.mat', train_data_radio=0.9, factor=1)
csi_dataloader = CsiDataloader('data/spatial_16_16_64_100.mat', train_data_radio=0.9, factor=1)
# csi_dataloader = CsiDataloader('data/gaussian_16_16_1_100.mat', train_data_radio=0.9, factor=1)
model = DenoisingNetModel(csi_dataloader)
save_model_path = Train.get_save_path_from_model(model)
if os.path.exists(save_model_path):
model_info = torch.load(save_model_path, map_location=torch.device('cpu'))
model.load_state_dict(model_info['state_dict'])
else:
logging.warning('unable load {}'.format(save_model_path))
# detection_methods = [DenoisingMethodLS(), DenoisingMethodMMSE(), DenoisingMethodModel(model, use_gpu)]
detection_methods = [DenoisingMethodMMSE(), DenoisingMethodLS()]
nmse_dict, x = analysis_denoising(csi_dataloader, detection_methods, 10, 30, 1)
# draw_line(x, nmse_dict, lambda n: n <= 10)
draw_line(x, nmse_dict, title='denoising-{}'.format(csi_dataloader.__str__()), save_dir=config.DENOISING_RESULT_IMG)
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