From eda5bc26f44ee9a6f83dcf8c91f17296d7fc509d Mon Sep 17 00:00:00 2001
From: Nao Pross <np@0hm.ch>
Date: Mon, 12 Feb 2024 14:52:43 +0100
Subject: Move into version control

---
 src/control.h.old | 104 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 104 insertions(+)
 create mode 100644 src/control.h.old

(limited to 'src/control.h.old')

diff --git a/src/control.h.old b/src/control.h.old
new file mode 100644
index 0000000..3a147fc
--- /dev/null
+++ b/src/control.h.old
@@ -0,0 +1,104 @@
+#pragma once
+
+#include "Eigen/Dense"
+#include <complex>
+
+#ifndef CONTROL_H
+#define CONTROL_H
+
+
+namespace ct
+{
+	// Fwd declarations
+	template<typename T, int n, int m, int k> struct SSModel;
+	template<typename T, int p, int z> struct TransferFn;
+
+	namespace math
+	{
+		template<typename T, int n, int m>
+		Eigen::Vector<T, n + m - 1> convolve1d(
+				const Eigen::Ref<Eigen::Vector<T, n>>& x
+				const Eigen::Ref<Eigen::Vector<T, m>>& y)
+		{
+			Eigen::Vector<T, n + m -1> out;
+
+			return out;
+		}
+
+		Eigen::VectorXd convolve1d(
+				const Eigen::Ref<Eigen::VectorXd>& x,
+				const Eigen::Ref<Eigen::VectorXd>& y)
+		{
+			
+		}
+	}
+
+	/* Transfer Functions for SISO and frequency domain analysis */
+	template<typename T, int p, int z>
+	struct TransferFn
+	{
+		Eigen::Vector<std::complex<T>, z> zeros;
+		Eigen::Vector<std::complex<T>, p> poles;
+
+		explicit operator SSModel<T, p, 1, 1>() const
+		{
+			
+		}
+	};
+
+	typedef TransferFn<std::complex<double>, Eigen::Dynamic, Eigen::Dynamic> TransferFnXd;
+
+	template<typename T, typename CT = std::complex<T>>
+	struct FreqSeries
+	{
+		size_t nsamples;
+		T start, end;
+		Eigen::VectorX<T> f;
+		Eigen::VectorX<CT> data;
+	};
+
+	typedef FreqSeries<double> FreqSeriesD;
+
+	/* State space modelling and time domain simulaiton */
+
+	template<typename T, int n, int m, int k>
+	struct SSModel
+	{
+		/* State space model with
+		 * - n dimensional state x
+		 * - m dimensional input u
+		 * - k dimensional output y
+		 */
+		Eigen::Matrix<T, n, n> A;
+		Eigen::Matrix<T, n, m> B;
+		Eigen::Matrix<T, k, m> C;
+		Eigen::Matrix<T, k, m> D;
+
+		// SSModel(Eigen::VectorX<T> zeros, Eigen::VectorX<T> poles);
+	};
+
+	typedef SSModel<double, Eigen::Dynamic, Eigen::Dynamic, Eigen::Dynamic> SSModelXd;
+
+	template<typename T>
+	struct TimeSeries
+	{
+		size_t nsamples;
+		T start, end;
+		Eigen::VectorX<T> t;
+		Eigen::MatrixX<T> u, x, y;
+
+		template<int n, int m, int k>
+		explicit TimeSeries(size_t nsamples, T start, T end, const SSModel<T, n, m, k>& ss);
+	};
+
+	typedef TimeSeries<double> TimeSeriesD;
+
+	template<typename T, int n, int m, int k>
+	void response(SSModel<T, n, m, k> ss, TimeSeries<T>& ts);
+
+	template<typename T, int n, int m, int k>
+	void step(SSModel<T, n, m, k> ss, TimeSeries<T>& ts);
+}
+
+#endif // CONTROL_H
+// vim:ts=2 sw=2 noet:
-- 
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