diff options
Diffstat (limited to 'CommonLibs/BitVector.cpp')
| -rw-r--r-- | CommonLibs/BitVector.cpp | 28 |
1 files changed, 25 insertions, 3 deletions
diff --git a/CommonLibs/BitVector.cpp b/CommonLibs/BitVector.cpp index 54a3edc..7487834 100644 --- a/CommonLibs/BitVector.cpp +++ b/CommonLibs/BitVector.cpp @@ -29,6 +29,7 @@ #include "BitVector.h" #include <iostream> #include <stdio.h> +#include <sstream> using namespace std; @@ -274,9 +275,6 @@ void BitVector::unmap(const unsigned *map, size_t mapSize, BitVector& dest) cons - - - ostream& operator<<(ostream& os, const BitVector& hv) { for (size_t i=0; i<hv.size(); i++) { @@ -527,6 +525,22 @@ void SoftVector::decode(ViterbiR2O4 &decoder, BitVector& target) const +// (pat) Added 6-22-2012 +float SoftVector::getEnergy(float *plow) const +{ + const SoftVector &vec = *this; + int len = vec.size(); + float avg = 0; float low = 1; + for (int i = 0; i < len; i++) { + float bit = vec[i]; + float energy = 2*((bit < 0.5) ? (0.5-bit) : (bit-0.5)); + if (energy < low) low = energy; + avg += energy/len; + } + if (plow) { *plow = low; } + return avg; +} + ostream& operator<<(ostream& os, const SoftVector& sv) { @@ -578,6 +592,14 @@ void BitVector::hex(ostream& os) const os << std::dec; } +std::string BitVector::hexstr() const +{ + std::ostringstream ss; + hex(ss); + return ss.str(); +} + + bool BitVector::unhex(const char* src) { // Assumes MSB-first packing. |