function dhdx = vdpMeasurementJacobianFcn(xk)  %#ok<INUSD>
% vdpMeasurementJacobianFcn Jacobian of vdpMeasurementFcn (an example
% measurement function for discrete-time state estimators)
%
% dhdx = vdpMeasurementJacobianFcn(x)
%
% Inputs:
%    x - States x[k]
%
% Outputs:
%    dhdx - dh/dx, the Jacobian of vdpMeasurementFcn evaluated at x[k]
%
% See also vdpMeasurementFcn, extendedKalmanFilter, unscentedKalmanFilter

%   Copyright 2016 The MathWorks, Inc.

%#codegen

% The tag %#codegen must be included if you wish to generate code with 
% MATLAB Coder.

dhdx = [1 0];
end