## 3 Experiments and Result Analysis  
### PolSAR Data  
An experimental site, which was established by the European Space Agency (ESA), was used to evaluate the performances of the proposed method. The experimental area was an approximate 14 km \(\times\) 19 km rectangular region located in the town of Indian Head (103 deg66'87.3'' W, 50 deg53'18.1'' N) in southeastern Saskatchewan, Canada. This area has 14 classes of different type of crops and an 'unknown' class including urban areas, transport corridors and areas of natural vegetation. The number of pixels and total area for each crop type are summarized in Table 3. The location maps from Google Earth and ground truth maps of the study area are shown in Figure 4.  
\begin{table}
\begin{tabular}{c c c c c} \hline \hline \multirow{2}{*}{**Layer**} & \multicolumn{3}{c}{**Detailed Description**} & \multirow{2}{*}{**Output Size**} \\ \cline{2-2} \cline{4-5}  & **Kernel Size** & **Number** & **Stride** & **Padding** \\ \hline Input & & - & & 35 \(\times\) 35 \(\times\) 9 \\ Conv\_1 & \(5\times 5\times 9\) & 64 & [2,2] & same & 18 \(\times\) 18 \(\times\) 64 \\ Conv\_2 & \(3\times 3\times 64\) & 128 & [1,1] & same & 18 \(\times\) 18 \(\times\) 128 \\ Maxpool\_1 & \(2\times 2\times 128\) & - & [2,2] & [0,0,0,0] & 9 \(\times\) 9 \(\times\) 128 \\ Conv\_3 & \(3\times 3\times 128\) & 256 & [1,1] & same & 9 \(\times\) 9 \(\times\) 256 \\ Conv\_4 & \(3\times 3\times 256\) & 128 & [2,2] & same & 5 \(\times\) 5 \(\times\) 128 \\ Conv\_5 & \(3\times 3\times 128\) & 128 & [1,1] & same & 5 \(\times\) 5 \(\times\) 128 \\ Conv\_6 & \(1\times 1\times 256\) & 32 & [1,1] & same & 9 \(\times\) 9 \(\times\) 32 \\ Conv\_7 & \(1\times 1\times 128\) & 64 & [1,1] & same & 5 \(\times\) 5 \(\times\) 64 \\ Maxpool\_2 & \(2\times 2\times 128\) & - & [2,2] & [0,0,0,0] & 2 \(\times\) 2 \(\times\) 128 \\ Fc\_1,2,3 & - & 256 & - & - & 1 \(\times\) 1 \(\times\) 256 \\ Fc\_4 & - & M & - & - & 1 \(\times\) 1 \(\times\) M \\ Softmax & & softmax & & 1 \(\times\) 1 \(\times\) M \\ \hline \hline \end{tabular}  
* M denotes the number of categories of crops.  
\end{table}
Table 2: Detailed configuration of MSCDN network architecture.  
\begin{table}
\begin{tabular}{c c c c} \hline \hline
**Crop Type** & **Crop Code** & **Number of Pixels** & **Total Crop Area (\%)** \\ \hline Unknown & Unk & 1,323,612 & 13,236 ha (39.12\%) \\ Lentil & Len & 217,186 & 2172 ha (6.42\%) \\ Durum Wheat & Duw & 101,299 & 1013 ha (2.99\%) \\ Spring Wheat & Spw & 577,109 & 5771 ha (17.05\%) \\ Field Pea & Fip & 255,108 & 2551 ha (7.54\%) \\ Oat & Oat & 70,643 & 706 ha (2.09\%) \\ Canola & Can & 459,096 & 4591 ha (13.57\%) \\ Grass & Gra & 23,452 & 235 ha (0.69\%) \\ Mixed Pasture & Mip & 15,799 & 158 ha (0.47\%) \\ Mixed Hay & Mih & 28,756 & 288 ha (0.85\%) \\ Barley & Bar & 108,133 & 1081 ha (3.20\%) \\ Summer fallow & Sut & 22,445 & 224 ha (0.66\%) \\ Flax & Fla & 131,296 & 1313 ha (3.88\%) \\ Canary seed & Cas & 47,202 & 472 ha (1.39\%) \\ Chemical fallow & Chf & 2682 & 27 ha (0.08\%) \\ Total & & 3,383,818 & 33,838 ha (100\%) \\ \hline \hline \end{tabular}
\end{table}
Table 3: Crop type and area statistics of study area.  
The experimental PolSAR data sets were simulated with Sentinel-1 system parameters from real RADARSAT-2 data by ESA before launching real Sentinel-1 systems [58]. The real RADARSAT-2 datasets were collected on 21 April, 15 May, 8 June, 2 July, 26 July, 19 August and 12 September 2009. The multi-temporal PolSAR data in these 7 periods almost covered the entire growth cycle of major crops in the experimental area from sowing to harvesting. The polarization decomposition of the single temporal PolSAR data yields 36 dimensional features. Therefore, 252 dimensional features have been acquired from 7 time-series PolSAR images.