diff --git a/src/Algorithms/HandsFreeAlgorithms/HandsFreeSinglePatch.jl b/src/Algorithms/HandsFreeAlgorithms/HandsFreeSinglePatch.jl
index 25513cb..1eec9a3 100644
--- a/src/Algorithms/HandsFreeAlgorithms/HandsFreeSinglePatch.jl
+++ b/src/Algorithms/HandsFreeAlgorithms/HandsFreeSinglePatch.jl
@@ -16,8 +16,8 @@ function prepareSystemMatrix(reco::SinglePatchHandsFreeReconstructionParameter{L
   return freqs, sf, grid, reco.arrayType
 end
 
-function prepareWeights(reco::SinglePatchHandsFreeReconstructionParameter{L,arrT,SP,W}, freqs, sf) where {L, arrT, SP, W<:AbstractWeightingParameters}
-  return process(AbstractMPIRecoAlgorithm, reco.weightingParams, freqs, sf, nothing, reco.arrayType)
+function prepareWeights(reco::SinglePatchHandsFreeReconstructionParameter{L,arrT,SP,W}, freqs, S) where {L, arrT, SP, W<:AbstractWeightingParameters}
+  return process(AbstractMPIRecoAlgorithm, reco.weightingParams, freqs, reco.sf, S, nothing, reco.arrayType)
 end
 
 function process(algo::SinglePatchReconstructionAlgorithm, params::SinglePatchHandsFreeReconstructionParameter, u)
diff --git a/src/Algorithms/MultiPatchAlgorithms/MultiPatchAlgorithm.jl b/src/Algorithms/MultiPatchAlgorithms/MultiPatchAlgorithm.jl
index 214b237..df7c6c6 100644
--- a/src/Algorithms/MultiPatchAlgorithms/MultiPatchAlgorithm.jl
+++ b/src/Algorithms/MultiPatchAlgorithms/MultiPatchAlgorithm.jl
@@ -87,7 +87,7 @@ function process(algo::MultiPatchReconstructionAlgorithm, params::Union{OP, Proc
   # Kinda of hacky. MultiPatch parameters don't map nicely to the SinglePatch inspired pre, reco, post structure
   # Have to create weights before ffop is (potentially) moved to GPU, as GPU arrays don't have efficient hash implementations
   # Which makes this process expensive to cache
-  weights = process(typeof(algo), weightingParams, frequencies, result, nothing, algo.arrayType)
+  weights = process(typeof(algo), weightingParams, frequencies, algo.sf, result, nothing, algo.arrayType)
   resultXPU = process(typeof(algo), params, result, algo.arrayType)
   return resultXPU, weights
 end
diff --git a/src/Algorithms/MultiPatchAlgorithms/MultiPatchPeriodicMotion.jl b/src/Algorithms/MultiPatchAlgorithms/MultiPatchPeriodicMotion.jl
index da3964b..1154378 100644
--- a/src/Algorithms/MultiPatchAlgorithms/MultiPatchPeriodicMotion.jl
+++ b/src/Algorithms/MultiPatchAlgorithms/MultiPatchPeriodicMotion.jl
@@ -76,7 +76,7 @@ function process(algoT::Type{<:MultiPatchReconstructionAlgorithm}, params::Perio
         FFPos=ffPos_[:,resortedInd[:,1]], mapping=mapping,
         FFPosSF=ffPos_[:,resortedInd[:,1]], bgCorrection = false, tfCorrection = params.tfCorrection)
 
-  weights = process(algoT, params.weightingParams, frequencies, ffOp, nothing, Array)
+  weights = process(algoT, params.weightingParams, frequencies, sf, ffOp, nothing, Array)
   return uReco, ffOp, weights
 end
 
diff --git a/src/Algorithms/SinglePatchAlgorithms/SinglePatchAlgorithm.jl b/src/Algorithms/SinglePatchAlgorithms/SinglePatchAlgorithm.jl
index b454a7e..3ae3195 100644
--- a/src/Algorithms/SinglePatchAlgorithms/SinglePatchAlgorithm.jl
+++ b/src/Algorithms/SinglePatchAlgorithms/SinglePatchAlgorithm.jl
@@ -38,8 +38,8 @@ function prepareSystemMatrix(reco::SinglePatchReconstructionParameter{L,S}) wher
   return freqs, sf, grid, reco.arrayType
 end
 
-function prepareWeights(reco::SinglePatchReconstructionParameter{L,S,arrT,SP,R,W}, freqs, sf) where {L, S, arrT, SP, R, W<:AbstractWeightingParameters}
-  return process(AbstractMPIRecoAlgorithm, reco.weightingParams, freqs, sf, nothing, reco.arrayType)
+function prepareWeights(reco::SinglePatchReconstructionParameter{L,S,arrT,SP,R,W}, freqs, S_) where {L, S, arrT, SP, R, W<:AbstractWeightingParameters}
+  return process(AbstractMPIRecoAlgorithm, reco.weightingParams, freqs, reco.sf, S_, nothing, reco.arrayType)
 end
 
 Base.lock(algo::SinglePatchReconstructionAlgorithm) = lock(algo.output)
diff --git a/src/SystemMatrix/SystemMatrix.jl b/src/SystemMatrix/SystemMatrix.jl
index baebb81..e8fcba5 100644
--- a/src/SystemMatrix/SystemMatrix.jl
+++ b/src/SystemMatrix/SystemMatrix.jl
@@ -67,8 +67,9 @@ function process(t::Type{<:AbstractMPIRecoAlgorithm}, params::DenseSystemMatixLo
   return frequencies, process(t, params, sf, frequencies)...
 end
 function process(t::Type{<:AbstractMPIRecoAlgorithm}, params::DenseSystemMatixLoadingParameter, sf::MPIFile, frequencies::Vector{CartesianIndex{2}})
+  @info "Start Loading SM"
   S, grid = getSF(sf, frequencies, nothing; toKwargs(params, default = Dict{Symbol, Any}(:tfCorrection => rxHasTransferFunction(sf)))...)
-  @info "Loading SM"
+  @info "Done Loading SM"
   return S, grid
 end
 
diff --git a/src/Weighting.jl b/src/Weighting.jl
index 3c40775..a286134 100644
--- a/src/Weighting.jl
+++ b/src/Weighting.jl
@@ -2,8 +2,8 @@ export getWeights, WeightingType, setFreqToZero
 
 export AbstractWeightingParameters
 abstract type AbstractWeightingParameters <: AbstractMPIRecoParameters end
-function process(type::Type{<:AbstractMPIRecoAlgorithm}, params::AbstractWeightingParameters, freqs, op = nothing, u = nothing, arrayType = Array)
-  result = process(type, params, freqs, op, u)
+function process(type::Type{<:AbstractMPIRecoAlgorithm}, params::AbstractWeightingParameters, freqs, sf = nothing, S = nothing, u = nothing, arrayType = Array)
+  result = process(type, params, freqs, sf, S, u, arrayType)
   if !isnothing(result)
     result = map(real(eltype(algo.S)), result)
   end
@@ -40,6 +40,16 @@ function process(::Type{<:AbstractMPIRecoAlgorithm}, params::WhiteningWeightingP
   return weights
 end
 
+export SMWhiteningWeightingParameters
+Base.@kwdef struct SMWhiteningWeightingParameters <: AbstractWeightingParameters
+  # NOP
+end
+function process(::Type{<:AbstractMPIRecoAlgorithm}, params::SMWhiteningWeightingParameters, freqs::Vector{CartesianIndex{2}}, sf, args...)
+  noise = noiseEstimate(sf,frequencies=freqs)
+  weights = minimum(abs.(vec(noise))) ./ abs.(vec(noise))
+  return weights
+end
+
 export RowNormWeightingParameters
 Base.@kwdef struct RowNormWeightingParameters <: AbstractWeightingParameters
   # NOP
diff --git a/test/Reconstruction.jl b/test/Reconstruction.jl
index af44ac6..be440e1 100644
--- a/test/Reconstruction.jl
+++ b/test/Reconstruction.jl
@@ -115,6 +115,10 @@
   c8 = reconstruct("SinglePatch", b; params...)
   exportImage(joinpath(imgdir, "Reconstruction8.png"), Array(c8[1,:,:,1,1]))
   @test compareImg("Reconstruction8.png")
+  
+  params[:weightingParams] = SMWhiteningWeightingParameters()
+  c8a = reconstruct("SinglePatch", b; params...)
+  @test isapprox(arraydata(c8), arraydata(c8a))
 
   c9a = reconstruct("SinglePatch", b; params..., reg = [L2Regularization(0.0)], weightingParams = NoWeightingParameters())
   c9b = reconstruct("SinglePatch", b; params..., reg = [L2Regularization(0.0)], weightingParams = RowNormWeightingParameters())