Robust Flight Telemetry

[rdoddanavar]

~Telem ("telemetry") class~

[rdoddanavar]

Use stateTelem object of type std::map<std::string, std::vector<double>> to collect time history of fields in state object (of type std::map<std::string, double*>

[rdoddanavar]

2 options for overwriting std::ostringstream (std::ostringstream oss;)

• oss.str(""); oss.clear();
• std::ostringstream.swap(oss); --> C++11 only

[rdoddanavar]

Results:

[rdoddanavar]

std::vector vs. std::array?

• https://stackoverflow.com/questions/4424579/stdvector-versus-stdarray-in-c
• https://stackoverflow.com/questions/6632971/what-is-the-difference-between-stdarray-and-stdvector-when-do-you-use-one-o?noredirect=1&lq=1

Will std::array be faster?

[rdoddanavar]

Need to determine telem preallocation---min flight time, max flight time from user; should I assume that users always want flight time to be determined during runtime?

[rdoddanavar]

https://stackoverflow.com/questions/18688763/why-is-istream-ostream-slow

[rdoddanavar]

Goals:

• Create fixed size stateTelem arrays
  • Run flights indefinitely until termination
  • Output telemetry incrementally
• At ground impact, interpolate state data backwards to find true linPosZ=0.0 point
• Use fmt library instead of iostream for performance
• Create serial Monte Carlo mode (single processor)
• Define three (3) different output modes: text (CSV), binary (NPY), or none (stats only)