Updated statistics, beamlets header format.

applications/lofar2/doc/prestudy/station2_sdp_icd.txt

@@ -227,7 +227,11 @@ The total number of streams to CEP then becomes NOF_BEAMSETS * NOF_LANES.
  
 - 1 Byte, MARKER
   . Like in APERTIF and ARTS, may be useful to quickly recognize the data packet.
-  . Beamlets: 20
+  . Beamlets : 20
+  . Transient: 21
+  . SST      : 22
+  . BST      : 23
+  . XST      : 24
   
 - 1 Byte, VERSION_ID
   . 2,3,4 for LOFAR1
@@ -235,14 +239,8 @@ The total number of streams to CEP then becomes NOF_BEAMSETS * NOF_LANES.
   
 - 4 Byte, OBSERVATION_ID
     Instead of CONFIGURATION_ID 8b (used in LOFAR1? intended to refer to the parset that defines this observation)
-    The observation ID provides the hook to information on:
-  . RCU mode
-  . f_adc = 200 MHz, 160 MHz
-  . Nyquist zone (0, 1, 2)
-  . critically PFB, oversampled PFB (or p, q for R_os = p/q)
-  . nof antenna in array
-    - Number of antenna in array (core, LBA, HBA inner to make HBA international look like HBA remote),
-    - Maximum S_ant = 192.
+    The observation ID provides the hook to information on e.g. RCU mode, f_adc = 200 MHz, 160 MHz, Nyquist zone
+    (0, 1, 2), critically PFB, oversampled PFB, nof antenna in array (core, LBA, HBA inner to make HBA international look like HBA remote), maximum S_ant = 192.
   . etc
 
 - 2 Byte, STATION_ID (idem as LOFAR1)
@@ -258,7 +256,7 @@ The total number of streams to CEP then becomes NOF_BEAMSETS * NOF_LANES.
   . 1b payload_ok, 0 payload ok, 1 one or more blocks in payload have data errors
        - no need for indicator bit per block, assuming errors are rare and will result in loss of
          multiple blocks anyway
-  . 5b w_beamlet in number of bits
+  . 5b beamlet_width in number of bits
        - Instead of BM = beamlet mode
        - Default 8 for W_beamlet = 8 bit
        - Use 5 bit to even fit 16b mode like in LOFAR1)
@@ -282,8 +280,6 @@ The total number of streams to CEP then becomes NOF_BEAMSETS * NOF_LANES.
       scale = 1    --> 262144
       scale = 96   -->   2731
       scale = 1024 -->    256
-      
-  
 
 - 2 Byte, BEAMLET_INDEX = SET_INDEX * NOF_BEAMLETS_PER_SET + bl * NOF_LANES + LANE_INDEX
   . NOF_BEAMLETS_PER_SET = 488
@@ -311,7 +307,7 @@ The total number of streams to CEP then becomes NOF_BEAMSETS * NOF_LANES.
 - 1 Byte, BEAMLET_STEP
   . Index increment of subsequent beamlets in block
   . BEAMLET_STEP = NOF_LANES
-  ? Is it useful to support BEAMLET_STEP=NOF_LANES > 1 at SDP but < 22 which is optimum for CEP?
+  ? Is it useful to support BEAMLET_STEP = NOF_LANES > 1 at SDP but < 22 which is optimum for CEP?
   
   
 - 2 Byte, NOF_BEAMLETS_PER_BLOCK
@@ -333,7 +329,7 @@ The total number of streams to CEP then becomes NOF_BEAMSETS * NOF_LANES.
     has incorrect data  
 
 - 8 Byte BSN
-  . 50b Blcok Sequence Number
+  . 50b Block Sequence Number
     - Instead of 32b seconds TIMESTAMP and 32b BLOCK_SEQUENCE_NUMBER within second of LOFAR1
     - Block Sequence Number (BSN) used to detect lost blocks and to align blocks from different stations
     - BSN unit T_sub, 50b yields > 100 year span (1970 - 2070)