University;
of;
Science;
and;
Technology,;
Nanjing;
210007,;
China;
Representative;
Office;
of;
the;
Army;
Aeronautical;
Department;
Resident;
in;
Shanghai;
for;
the;
Headquarter;
of;
General;
Staff,;
Shanghai;
200030,;
China;
优化设计; OFDM信号; 双通道; 分散; 过度; 正交频分复用; 时间频率; 多载波信号;