Application of maximum minimum value of quadratic function 二元函数条件极值的一个简便判别方法
Through a performance analysis and simulation on generated methods , maximum minimum distance , undetected error probabilities , code weight distribution , good extended shortened codes are determined and general rule is concluded . furtherly , the paper generates nonlinear extended shortened codes 通过对扩展缩短crc码的构造方法、最小距离、不可检错误概率、码重分布等进行理论分析和仿真,得到了扩展缩短crc码的好码,并综合出普遍规律。