A novel memory efficient path metric update is proposed for Maximum A Posteriori(MAP) decoder of turbo codes to reduce the memory requirement of state metric information calcu-lation. For MAP decoder,the same memory c...A novel memory efficient path metric update is proposed for Maximum A Posteriori(MAP) decoder of turbo codes to reduce the memory requirement of state metric information calcu-lation. For MAP decoder,the same memory can be shared by the forward and backward metrics with this metric update scheme. The forward and backward metrics update can be performed at the same time. And all of the extrinsic information can be calculated at the end of metric update. Therefore,the latency and area in the implementation will be reduced with the proposed metric update method.展开更多
运用MATLAB及ANSYS Maxwell有限元软件,采用场路结合方法设计了一台60 k W电动汽车用内置式永磁同步电动机。通过对电机的空载反电势、计算极弧系数、空载漏磁系数、直交轴电感等关键电磁参数及电机效率MAP图的分析计算和样机测试,验证...运用MATLAB及ANSYS Maxwell有限元软件,采用场路结合方法设计了一台60 k W电动汽车用内置式永磁同步电动机。通过对电机的空载反电势、计算极弧系数、空载漏磁系数、直交轴电感等关键电磁参数及电机效率MAP图的分析计算和样机测试,验证了设计的可行性。展开更多
文摘A novel memory efficient path metric update is proposed for Maximum A Posteriori(MAP) decoder of turbo codes to reduce the memory requirement of state metric information calcu-lation. For MAP decoder,the same memory can be shared by the forward and backward metrics with this metric update scheme. The forward and backward metrics update can be performed at the same time. And all of the extrinsic information can be calculated at the end of metric update. Therefore,the latency and area in the implementation will be reduced with the proposed metric update method.
