Diffusion Instrument Control (TekRSA-Freq-vs-Time) Browse

MyRsa.m
e97e0744bd2eTekRSA-Freq-vs-Time

MyRsa.m
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			% Class for controlling Tektronix RSA5103 and RSA5106 spectrum analyzers

			classdef MyRsa < MyScpiInstrument & MyDataSource & MyCommCont

			properties (SetAccess = protected, GetAccess = public)
			acq_trace = [] % The number of last read trace
			end

			methods (Access = public)
			function this = MyRsa(varargin)
			this@MyCommCont(varargin{:});

			this.Trace.unit_x = 'Hz';
			this.Trace.unit_y = '$\mathrm{V}^2/\mathrm{Hz}$';
			this.Trace.name_y = 'Power';
			this.Trace.name_x = 'Frequency';

			createCommandList(this);
			end
			end


			methods (Access = protected)

			function createCommandList(this)
			addCommand(this, 'rbw', ':DPX:BAND:RES', ...
			'format', '%e', ...
			'info', 'Resolution bandwidth (Hz)', ...
			'default', 1e3);

			addCommand(this, 'auto_rbw', ':DPX:BAND:RES:AUTO', ...
			'format', '%b', ...
			'default', true);

			addCommand(this, 'span', ':DPX:FREQ:SPAN', ...
			'format', '%e', ...
			'info', '(Hz)', ...
			'default', 1e6);

			addCommand(this, 'start_freq', ':DPX:FREQ:STAR',...
			'format', '%e', ...
			'info', '(Hz)', ...
			'default', 1e6);

			addCommand(this, 'stop_freq', ':DPX:FREQ:STOP',...
			'format', '%e', ...
			'info', '(Hz)', ...
			'default', 2e6);

			addCommand(this, 'cent_freq', ':DPX:FREQ:CENT',...
			'format', '%e', ...
			'info', '(Hz)', ...
			'default', 1.5e6);

			% Continuous triggering
			addCommand(this, 'init_cont', ':INIT:CONT', ...
			'format', '%b',...
			'info', 'Continuous triggering on/off', ...
			'default', true);

			% Number of points in trace
			addCommand(this, 'point_no', ':DPSA:POIN:COUN', ...
			'format', 'P%i', ...
			'value_list', {801, 2401, 4001, 10401}, ...
			'default', 10401);

			% Reference level (dB)
			addCommand(this, 'ref_level',':INPut:RLEVel', ...
			'format', '%e',...
			'info', '(dB)', ...
			'default', 0);

			% Display scale per division (dBm/div)
			addCommand(this, 'disp_y_scale', ':DISPlay:DPX:Y:PDIVision',...
			'format', '%e', ...
			'info', '(dBm/div)', ...
			'default', 10);

			% Display vertical offset (dBm)
			addCommand(this, 'disp_y_offset', ':DISPLAY:DPX:Y:OFFSET', ...
			'format', '%e', ...
			'info', '(dBm)', ...
			'default', 0);

			% Parametric commands
			for i = 1:3
			i_str = num2str(i);

			% Display trace
			addCommand(this, ['disp_trace',i_str], ...
			[':TRAC',i_str,':DPX'], ...
			'format', '%b', ...
			'info', 'on/off', ...
			'default', false);

			% Trace Detection
			addCommand(this, ['det_trace',i_str],...
			[':TRAC',i_str,':DPX:DETection'],...
			'format', '%s', ...
			'value_list', {'AVERage', 'NEGative', 'POSitive'},...
			'default', 'average');

			% Trace Function
			addCommand(this, ['func_trace',i_str], ...
			[':TRAC',i_str,':DPX:FUNCtion'], ...
			'format', '%s', ...
			'value_list', {'AVERage', 'HOLD', 'NORMal'},...
			'default', 'average');

			% Number of averages
			addCommand(this, ['average_no',i_str], ...
			[':TRAC',i_str,':DPX:AVER:COUN'], ...
			'format', '%i', ...
			'default', 1);

			% Count completed averages
			addCommand(this, ['cnt_trace',i_str], ...
			[':TRACe',i_str,':DPX:COUNt:ENABle'], ...
			'format', '%b', ...
			'info', 'Count completed averages', ...
			'default', false);
			end
			end
			end


			methods (Access = public)
			function readTrace(this, varargin)
			if ~isempty(varargin)
			n_trace = varargin{1};
			else
			n_trace = this.acq_trace;
			end

			% Ensure that device parameters, especially those that will be
			% later used for the calculation of frequency axis, are up to
			% date
			sync(this);

			writeString(this, sprintf('fetch:dpsa:res:trace%i?', n_trace));
			data = binblockread(this.Comm, 'float');

			% Calculate the frequency axis
			this.Trace.x = linspace(this.start_freq, this.stop_freq,...
			this.point_no);

			% Calculates the power spectrum from the data, which is in dBm.
			% Output is in V^2/Hz
			this.Trace.y = (10.^(data/10))/this.rbw500.001;

			this.acq_trace = n_trace;

			% Trigger acquired data event
			triggerNewData(this);
			end

			% Abort data acquisition
			function abortAcq(this)
			writeString(this, ':ABORt');
			end

			% Initiate data acquisition
			function initAcq(this)
			writeString(this, ':INIT');
			end

			% Wait for the current operation to be completed
			function val = opc(this)
			val = queryString(this, '*OPC?');
			end

			% Extend readHeader function
			function Hdr = readHeader(this)

			%Call parent class method and then append parameters
			Hdr = readHeader@MyScpiInstrument(this);

			%Hdr should contain single field
			addParam(Hdr, Hdr.field_names{1}, ...
			'acq_trace', this.acq_trace, ...
			'comment', 'The number of last read trace');
			end
			end

			methods
			function set.acq_trace(this, val)
			assert((val==1 \|\| val==2 \|\| val==3), ...
			'Acquisition trace number must be 1, 2 or 3.');
			this.acq_trace = val;
			end
			end
			end

rINSTCONTROL/@MyRsa/MyRsa.me97e0744bd2eTekRSA-Freq-vs-Time

MyRsa.mView Options

rINSTCONTROL/@MyRsa/MyRsa.m
e97e0744bd2eTekRSA-Freq-vs-Time

MyRsa.m
View Options