Added two acquisition strategies. Flowgraph is changed to produce

default signal when doing sky search.

src/algorithms/tracking/gnuradio_blocks/galileo_e5a_dll_fll_pll_tracking_cc.cc

@@ -99,6 +99,7 @@ galileo_e5a_dll_fll_pll_tracking_cc::galileo_e5a_dll_fll_pll_tracking_cc(
         gr::block("galileo_e5a_dll_fll_pll_tracking_cc", gr::io_signature::make(1, 1, sizeof(gr_complex)),
                 gr::io_signature::make(1, 1, sizeof(Gnss_Synchro)))
 {
+    this->set_relative_rate(1.0/vector_length);
     // initialize internal vars
     d_queue = queue;
     d_dump = dump;

src/algorithms/tracking/gnuradio_blocks/galileo_e5a_dll_pll_tracking_cc.cc

@@ -210,7 +210,6 @@ void Galileo_E5a_Dll_Pll_Tracking_cc::start_tracking()
     d_code_loop_filter.initialize();    // initialize the code filter
 
     // generate local reference ALWAYS starting at chip 1 (1 sample per chip)
-    gps_l1_ca_code_gen_complex(&d_code[1], d_acquisition_gnss_synchro->PRN, 0);
     galileo_e5_a_code_gen_complex_primary(&d_code[1], d_acquisition_gnss_synchro->PRN, d_acquisition_gnss_synchro->Signal);
 
     d_code[0] = d_code[(int)Galileo_E5a_CODE_LENGTH_CHIPS];