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In communications, radar, sonar, and so forth, perfect arrays play fairly important roles. In this paper, we will investigate the construction methods of such arrays over the 8-QAM+ constellation. More clearly, for a given existing perfect ternary array (PTA), we will present two methods to convert it into an 8-QAM+ perfect array, depending on the existence of odd number in its size or not, respectively...
Golay complementary sequences play quite an important role in communication and radar. In this paper, we present a family of quaternary Golay complementary sequences. The resultant sequences result from conversion of the existing binary Golay sequences, and both have the same length and number of subsequences. Our method can provide rich quaternary Golay complementary sequences due to a large number...
The sequences with optimal autocorrelation have lots of application scenarios in communication, radar, and so forth. This paper focuses on the construction of the quaternary sequences with optimal autocorrelation. Based on the known binary sequences with optimal autocorrelation and odd length, the interleaving technique and the reverse Gray mapping, a method for constructing the optimal quaternary...
Two dimensional periodic complementary array sets, in this paper, are discussed, and a family of such array sets is presented. By sampling two dimensional perfect arrays, two dimensional periodic complementary array sets are produced, and in the resulting such array sets, the numbers and sizes of sub-arrays can be changed on demand within the range of possibilities. Therefore, the proposed method...
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