Multiple Binary Independent Mark-Space as an Improved Form of M-ary FSK Signaling

Multiple binary Frequency Shift Key (FSK/ Frequency Hop (FH) communications is an attractive alternative to conventional M-ary FSK/FH, providing increased transmission capacity with less susceptibility to interference. In non-coherent reception of independent binary Mark-Space signals, errors most often occur when only the complementary channel is jammed. Since conventional M-ary FSK/FH offers more opportunities for error than multiple binary FSK/FH, it is more prone to digital data error. Multiple binary FSK/FH provides the (same) high data rate of conventional M-ary signaling with the bit error rate of binary independent Mark-Space signaling.