因此，整型问题的约束放松并不一定会改进解决方案，因为可行域是离散的，而不是连续的。
Thus, a relaxation of the constraint of an integer problem does not necessarily improve the solution, because the feasible region is discrete and not continuous.
针对非视距环境下多站定位方法需要资源量大、成本高且定位精度受非视距传播影响大等问题，本文提出了单站定位的伪目标动态可行域约束法。
A location method aiming at suppressing NLOS errors in cellular networks using single observer is proposed, which is named by pseudo-target dynamic feasible region constraint method.
由于多层复形法全部优化过程都是在可行域内进行，所以得出的优化结果必然满足约束条件。
Due to multilayer complex method of the whole optimization procedure at feasible zone, the optimization can meet the condition of constraint.
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