A simplified decoding algorithm for multi-CRC polar codes

Polar codes represent one of the major breakthroughs in 5G standard,and have been proven to be able to achieve the symmetric capacity of binary-input discrete memoryless channels using the successive cancellation list(SCL)decoding algorithm.However,the SCL algorithm suffers from a large amount of memory overhead.This paper proposes an adaptive simplified decoding algorithm for multiple cyclic redundancy check(CRC)polar codes.Simulation results show that the proposed method can reduce the decoding complexity and memory space.It can also acquire the performance gain in the low signal to noise ratio region.

水汽系统异常的原因判断与处理

锅炉在运行中主要以水作为原料,如果水中的杂质含量过高将会产生严重的积垢,进而影响到锅炉的运行安全。为了保证锅炉水的品质符合要求,需要对锅炉的水处理技术进行不断的完善。厂里在水处理技术基本上不存在技术难点。但由于水汽系统隐蔽性大、技术要求高、涉及面广、系统性强,一旦发生故障,可能影响到各种环节的正常运行。因此,在锅炉机组运行中,需要认真分析水汽系统异常的原因,有效确保锅炉机组安全经济运行。本文说明了锅炉水汽系统流程,分析了造成水汽系统异常的原因,并阐述了具体的解决对策。