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Remove unused negative-shifted RRC filters.

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This commit is contained in:
Jared Boone 2015-10-15 13:32:19 -07:00
parent 4aae77f565
commit 338983e7ae
1 changed files with 0 additions and 44 deletions
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44
firmware/common/baseband_ais.hpp
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@ -59,13 +59,6 @@ namespace ais {
// RRC length should be about 4 x the symbol length to do a good job of
// cleaning up ISI.
/*
constexpr std::array<std::complex<float>, 8> rrc_taps_8_n { {
{ 0.00533687f, 0.00000000f }, { -0.00667109f, -0.00667109f },
{ 0.00000000f, -0.01334218f }, { -0.05145006f, 0.05145006f },
{ -0.14292666f, 0.00000000f }, { -0.05145006f, -0.05145006f },
{ 0.00000000f, 0.01334218f }, { -0.00667109f, 0.00667109f },
} };
constexpr std::array<std::complex<float>, 8> rrc_taps_8_p { {
{ 0.00533687f, 0.00000000f }, { -0.00667109f, 0.00667109f },
{ 0.00000000f, 0.01334218f }, { -0.05145006f, -0.05145006f },
@ -77,13 +70,6 @@ constexpr std::array<std::complex<float>, 8> rrc_taps_8_p { {
// These came from GRC directly, and have a bit more gain, it appears.
//
constexpr std::array<std::complex<float>, 8> rrc_taps_8_n { {
{ 0.02104694f, 0.00000000f }, { -0.02630867f, -0.02630867f },
{ 0.00000000f, -0.05261734f }, { -0.20290270f, 0.20290270f },
{ -0.56365746f, 0.00000000f }, { -0.20290270f, -0.20290270f },
{ 0.00000000f, 0.05261734f }, { -0.02630867f, 0.02630867f },
} };
constexpr std::array<std::complex<float>, 8> rrc_taps_8_p { {
{ 0.02104694f, 0.00000000f }, { -0.02630867f, 0.02630867f },
{ 0.00000000f, 0.05261734f }, { -0.20290270f, -0.20290270f },
@ -91,17 +77,6 @@ constexpr std::array<std::complex<float>, 8> rrc_taps_8_p { {
{ 0.00000000f, -0.05261734f }, { -0.02630867f, -0.02630867f },
} };
constexpr std::array<std::complex<float>, 16> rrc_taps_16_n { {
{ -0.00506828f, 0.00000000f }, { 0.00380121f, 0.00380121f },
{ 0.00000000f, 0.00152049f }, { 0.00532170f, -0.00532170f },
{ -0.02128679f, 0.00000000f }, { 0.02660849f, 0.02660849f },
{ 0.00000000f, 0.05321698f }, { 0.20521503f, -0.20521503f },
{ 0.57008100f, -0.00000000f }, { 0.20521503f, 0.20521503f },
{ -0.00000000f, -0.05321698f }, { 0.02660849f, -0.02660849f },
{ -0.02128679f, 0.00000000f }, { 0.00532170f, 0.00532170f },
{ -0.00000000f, -0.00152049f }, { 0.00380121f, -0.00380121f },
} };
constexpr std::array<std::complex<float>, 16> rrc_taps_16_p { {
{ -0.00506828f, 0.00000000f }, { 0.00380121f, -0.00380121f },
{ 0.00000000f, -0.00152049f }, { 0.00532170f, 0.00532170f },
@ -113,25 +88,6 @@ constexpr std::array<std::complex<float>, 16> rrc_taps_16_p { {
{ -0.00000000f, 0.00152049f }, { 0.00380121f, 0.00380121f },
} };
constexpr std::array<std::complex<float>, 32> rrc_taps_32_n { {
{ -0.00124950f, 0.00000000f }, { 0.00075863f, 0.00075863f },
{ 0.00000000f, 0.00011671f }, { 0.00087534f, -0.00087534f },
{ -0.00222813f, 0.00000000f }, { 0.00144828f, 0.00144828f },
{ 0.00000000f, 0.00032184f }, { 0.00177013f, -0.00177013f },
{ -0.00505750f, 0.00000000f }, { 0.00379313f, 0.00379313f },
{ 0.00000000f, 0.00151725f }, { 0.00531038f, -0.00531038f },
{ -0.02124151f, 0.00000000f }, { 0.02655189f, 0.02655189f },
{ 0.00000000f, 0.05310377f }, { 0.20477849f, -0.20477849f },
{ 0.56886834f, -0.00000000f }, { 0.20477849f, 0.20477849f },
{ -0.00000000f, -0.05310377f }, { 0.02655189f, -0.02655189f },
{ -0.02124151f, 0.00000000f }, { 0.00531038f, 0.00531038f },
{ -0.00000000f, -0.00151725f }, { 0.00379313f, -0.00379313f },
{ -0.00505750f, 0.00000000f }, { 0.00177013f, 0.00177013f },
{ 0.00000000f, -0.00032184f }, { 0.00144828f, -0.00144828f },
{ -0.00222813f, 0.00000000f }, { 0.00087534f, 0.00087534f },
{ -0.00000000f, -0.00011671f }, { 0.00075863f, -0.00075863f },
} };
constexpr std::array<std::complex<float>, 32> rrc_taps_32_p { {
{ -0.00124950f, 0.00000000f }, { 0.00075863f, -0.00075863f },
{ 0.00000000f, -0.00011671f }, { 0.00087534f, 0.00087534f },