Modulation for Digital Radio Broadcasting Using Amplitude Autocorrelation of Pseudo Random Noise Codes to Carry Information

• 作者: Fabrício de Araújo Carvalho Fernando Walter
• 来源期刊: 通讯与网络(英文)
• 学科: 医学
• 关键词: Digital Radio BROADCASTING Spectral Efficiency PSEUDO Random CODES CDMA SDR
• 年，卷（期）: 2013,（3）
• 页码范围: 57-64
• 页数: 8页
• 分类号: R73

摘要

The frequency bands used in mobile communications are allocated according to the type of application. With the need for more channels, the frequency spectrum has become a scarce natural resource. This study shows the results of a proposed modulation using a variation of the autocorrelation of pseudo-random codes to carry information. The work also presents the generation of multiple orthogonal axes to increase the bit rate thus improving the channel efficiency.