codes which are mutually orthogonal in time domain 同一个组内的码在时域上相互正交。
a method of constructing mutually orthogonal latin square of order 4t 阶正交拉丁方的构造方法
construct two mutually orthogonal tangents of the deltoid . where do they meet 三角星形线的两条互相垂直的法线的交点在哪里
in optical character recognition, two mutually orthogonal sets of parallel lines used for specifying or measuring character images 在光学字符识别中,两组相互垂直的平行线所构成的一平面网格,用来确定或量度字符图象。
very recently, laywine and mullen extended the table ( l-m table ) . in this article we will give some construction methods of mutually orthogonal frequency squares . as an application we improve the lower bounds for almost half of the entries in l-m table and conclude a new table 2001年,laywine和mullen将此表扩充为l-m表,本文给出正交频率方的一些组合构造方法,同时改进了l-m表中近一半下界值,并形成新的下界表。