keras - 层 time_distributed_30 的输入 0 与层不兼容：预期 ndim=5，发现 ndim=4。收到的完整形状：（无，无，无，无）

Question

1. 我正在尝试用 10 个类对 MSTAR 数据集进行分类
2. 我使用了包含 15 个时间步长的 DCNN 和 BILSTM 的模态

我的问题是：

1. 如何克服错误
2. 如何得到好的分类结果。

我的代码是：

inputs=Input(shape=(15,60,60,3))
model = Sequential()
# 1st Convolutional Layer
model.add(TimeDistributed(Conv2D(filters=16 ,kernel_size=(5,5), padding='valid'),input_shape=(15,60,60,3)))
model.add(TimeDistributed(Activation('relu')))
# Batch Normalisation
model.add(TimeDistributed(BatchNormalization()))
# Pooling 
model.add(TimeDistributed(MaxPooling2D(pool_size=(2,2), strides=(2,2), padding='valid')))

# 2nd Convolutional Layer
model.add(TimeDistributed(Conv2D(filters=32, kernel_size=(5,5), padding='valid')))
model.add(TimeDistributed(Activation('relu')))
# Batch Normalisation
model.add(TimeDistributed(BatchNormalization()))
# Pooling
model.add(TimeDistributed(MaxPooling2D(pool_size=(2,2), strides=(2,2), padding='valid')))

# 3rd Convolutional Layer
model.add(TimeDistributed(Conv2D(filters=64, kernel_size=(5,5), padding='valid')))
model.add(Activation('relu'))
# Batch Normalisation
model.add(TimeDistributed(BatchNormalization()))
# Pooling
model.add(TimeDistributed(MaxPooling2D(pool_size=(2,2), strides=(2,2), padding='valid')))

# 4th Convolutional Layer
model.add(TimeDistributed(Conv2D(filters=128, kernel_size=(4,4), padding='valid')))
model.add(TimeDistributed(Activation('relu')))
# Batch Normalisation
model.add(TimeDistributed(BatchNormalization()))
model.add(TimeDistributed(Flatten()))
#add dropout
model.add(Dropout(0.0))
#bidirectional lstm
model.add(Bidirectional(LSTM(1024,activation='tanh',return_sequences=True)))
#2 nd bidirectional layer
model.add(Bidirectional(LSTM(1024,activation='tanh',return_sequences=False)))
# Output Layer
model.add(Dense(10))
model.add(Activation('softmax'))

# (4) Compile 
model.compile(loss='categorical_crossentropy', optimizer='adam',\
 metrics=['accuracy'])
model.summary()