次最佳 meaning in Chinese
suboptimum
Examples
- This metric is optimal in the sense of global quadratic minimization , and can be obtained from the clusters in the training data in a supervised fashion
这个度量导入二次最佳化问题的解，将训练样本类结构的倾斜最小化。 - The main works of this paper can be summarized as follows : a multiuser detection method based on immune algorithm is proposed . this method decreases greatly computation complexity of optimal multiuser detector and achieves suboptimal performance
本文的主要工作可以概括如下：提出了基于免疫算法的多用户检测方法，这种方法大大降低了最佳多用户检测器的计算复杂度，同时达到了次最佳的检测效果。 - The optimum multiuser detection can obtain the best bit error rate theoretice . but its computing complexity increases with the number of users exponentially and belongs to np maturity problem . so much research fasten on the multiuser detection with low computing complexity . cdma multiuser detection is in fact a combination optimize problem
基于最大似然准则的最佳多用户检测器在理论上可以获得最小的误码率,提供最佳的检测性能,但其计算复杂度随用户数呈指数增长,属于np完备问题,因此大量的研究集中于发展计算复杂度较低的次最佳多用户检测器,使其具有合理的计算复杂度。 - After observing the correlative of pseudo noise code , we analyse the main cause of multi - access interference , and build the receiving model of multiuser system . in the thesis the optimum multiuser detectors with minimum probability of error and the near - optimum detectors are intrduced , and then pic multiuser detection is improved on
介绍了最佳多用户检测器和次最佳多用户检测器，并对现有一些并行干扰抵消多用户检测器进行了介绍并提出了改进的措施。对采用改进的算法的系统用montecarlo算法进行了误码性能分析。