Cheetah - SKA - PSS - Prototype Time Domain Search Pipeline
SKA PSS Input parameters

The PSS DDD and the CSP to Sub-elements ICD define a set of parameters to configure PSS working durin scans. The current list is up to date on 21 Mar 2018.

General parameters

CSP_PSS Parameter CTRL Name Type Range Modules
Sub-array ID sub_array_id ASCII String 0-15 All
Action action ASCII String Set All
Activation Time activation_time Date & time UTC All
Duration duration Integer 0-2100s All
Scan ID scan_id Integer 64-bit All
Observing Mode observing_mode ASCII String Pulsar and/or Single pulseAll
Pointing Name pointing_name ASCII String String All
Pointing coordinates pointing_coord ASCII String Astronomical Coordinates CDOS

Parameters specific for each sub-array

CSP_PSS Parameter CTRL Name Type Range Modules
Beam BW beam_bw Double 96 MHz LOW
300MHz MID
RCPT
FLDO
Number of bits per sample bit_per_sample Integer 1-32 RCPT
FLDO
Acceleration Search accel_search Boolean Enable / Disable CTRL
Cheetah
Single Pulse Search single_p_search Boolean Enable / Disable CTRL
Cheetah
Integration time integration_time Double Up to 1,800 seconds RCPT
FLDO
Cheetah
Acceleration Range accel_range Double +/-350 m/s^2 Default=0 FDAS
TDAS
Number of Trials trials_number Integer 0-Maxint (band dependent)FDAS
TDAS
Time Resolution time_resolution Double 50-800us 22n * 5us) RCPT
FLDO
Dispersion Measure disp_measure Double 0-3000 pc cm-3 DRED
FDAS
TDAS
DTR
SPS_Dispersion Measure sps_disp_measure Double 0-3000 pc cm-3 DRED
SIFT
DTR
Number of Frequency Channelsfreq_channels Integer 1000-8192 All
Time Samples per Block num_samples Unsignd LongUp to (integration time) / (time resolution) All
Sub-bands sub_bands Integer Up to 64 FLDO
Harmonic summing control parameterharmonic_foldsInteger1-32 HRMS
Complex FFT Control Parameters cfft_control String Label or Structure CXFTC
Candidates Output Parameters candidate_siftingStringLabel or Structure SIFT
DRED Control Parameters dred_statistic String Label or Structure DRED
CDOS Control Parameters cdos_control String Label or Structure CDOS
FLDO Control Parameters cdos_control String Label or Structure FLDO
RFIM Control Parameters cdos_control String Label or Structure RFIM
Single Pulse Threshold single_threshold Double Tuned to system noise SIFT
SPD

NOTE: the string variables labeled as Label or Structure can contain or a pointer to an external file (Label a symbolic name or a file-path) or a json Structure containing low level engineering parameters.

Parameters specific for each beam

CSP_PSS Parameter CTRL Name Type Range Modules
Beam ID beam_id Integer 0-Maxint All
Destination address dest_address String IP address and port CDOS
Checksum checksum Long 0-MaxLong CTRL