function?[eph?SOW]?=?ephemeris_D1（bits）
%Function?decodes?ephemerides?and?TOW?from?the?given?bit?stream.?The?stream
%（array）?in?the?parameter?BITS?must?contain?1500?bits.?The?first?element?in
%the?array?must?be?the?first?bit?of?a?subframe.?The?subframe?ID?of?the
%first?subframe?in?the?array?is?not?important.
%
%Function?does?not?check?parity!
%
%[eph?TOW]?=?ephemeris（bits?D30Star）
%
%???Inputs:
%???????bits????????-?bits?of?the?navigation?messages?（5?subframes）.
%???????????????????Type?is?character?array?and?it?must?contain?only
%???????????????????characters?‘0‘?or?‘1‘.
%???????D30Star?????-?The?last?bit?of?the?previous?nav-word.?Refer?to?the
%???????????????????GPS?interface?control?document?ICD?（IS-GPS-200D）?for
%???????????????????more?details?on?the?parity?checking