Spread spectrum communication apparatus

A spread spectrum communication apparatus in which frame synchronization is established by inserting data for frame synchronization as a part of a synchronization word of a transmission frame on a sending side and detecting the data for frame synchronization from reproduction data of a reception frame on a receiving side, the spread spectrum communication apparatus comprising:

• frame synchronization pseudo-noise train generating means for generating a pseudo-noise train used as said data for frame synchronization;
• de-spread means for de-spreading a signal that is input into said de-spread means;
• data reproducing means for producing said reproduction data from an output signal of said de-spread means;
• frame synchronization correlation means, receiving the pseudo-noise train outputted from said frame synchronization pseudo-noise train generating means and the reproduction data, for determining a value of correlation of the pseudo-noise train for frame synchronization and the reproduction data and providing an output signal when said value of correlation is not smaller than a reference value;
• and
• reception frame timing generating means for outputting a reception synchronization word timing signal based on a reference signal comprising the output signal of said frame synchronization correlation means.