| 摘要 |
PURPOSE:To extract a pulse type signal having a narrow width of time with no side lobe, by multiplying a prescribed complex coefficient by an input signal applied by the prescribed modulation and then obtaining the total sum of the self-correlation function signals. CONSTITUTION:A time series complex signal having the length (n) is supplied to an input terminal 1 and branched by a branching means 2 into N units of time series complex signals. These N units of complex signals are supplied to complex coefficient multiplying means 31-3N to obtain the multiplication of a time change complex coefficient of exp{j2pi(i-1)(k-1)/N}. The output signal of the complex coefficient multiplying means is supplied to each of matching filters 41-4N that delivers the self-correlation function signal of a supplid signal. The self-correlation function signals of N units of time series signals obtained through the filters 41-4N are added together by an adder 5. The total sum of N units of self-correlation function signals is turned into a pulse type signal having a narrow width of time with no side lobe. |
